MifepristoneQualityChecker
Mifepristone
Mifepristone Quality Checker — Mifepristone (Antiprogestogen, RU-486) (USP, EP draft)
ℹ️ The utility checks assay, specific rotation, melting point (with decomposition), UV ratio, critical impurities (11β-hydroxy, 17α-epimer), loss on drying, heavy metals, residual solvents.
ℹ️ Does not use machine learning — rule-based logic only.
⚠️ CRITICAL for production of medical abortion drugs! Control of 11β-hydroxy and 17α-epimer impurities is mandatory — affects antiprogestogenic activity and safety!
Usage:
MifepristoneQualityChecker.exe → demo mode (console output)
MifepristoneQualityChecker.exe input.csv output.json → evaluate your data
Input format:
BatchNumber,AssayPercent,SpecificRotation,MeltingPoint,UV240_300Ratio,Impurity11BetaHydroxy,Impurity17AlphaEpimer,TotalImpurities,LossOnDrying,HeavyMetals,ResidualSolvents,EthanolPPM,AcetonePPM,ClarityNTU,ColorAPHA
Example:
MIFE-2026-001,99.5,-50.0,197.5,2.0,0.2,0.1,0.4,0.3,5,1500,800,500,2,30
— WHY IS THIS NEEDED?
Mifepristone (RU-486) — synthetic antiprogestogen critical for:
• Medical abortion (in combination with misoprostol)
• Treatment of uterine fibroids, endometrial hyperplasia
• Emergency contraception (in some countries)
⚠️ CRITICAL:
• Specific rotation -52.0° to -48.0° — key identification parameter (in chloroform)
• Melting point 195.0–200.0°C (with decomposition) — confirms structure and purity
• UV ratio A240/A300: 1.8–2.2 — confirms structure (maxima at 240 and 300 nm)
• 11β-Hydroxy impurity ≤0.5% — oxidation product, reduces antiprogestogenic activity
• 17α-Epimer ≤0.5% — stereoisomer, affects receptor binding and safety
• Total impurities ≤1.0% — critical due to high biological activity and narrow therapeutic window
⚠️ Special attention: Mifepristone is EXTREMELY sensitive to light, oxygen, and moisture! Requires storage in airtight, light-protected packaging under nitrogen at temperature not exceeding 25°C. Analysis must be performed under light- and moisture-protected conditions! 11β-Hydroxy impurities are especially critical — affect efficacy of pregnancy termination.
Critical parameters:
• Assay: 97.0–103.0% (on dried basis)
• Specific rotation: -52.0° to -48.0° (in chloroform)
• Melting point: 195.0–200.0°C (with decomposition)
• UV ratio A240/A300: 1.8–2.2
• 11β-Hydroxy impurity: ≤0.5%
• 17α-Epimer: ≤0.5%
• Total impurities: ≤1.0%
• Loss on drying: ≤0.5%
• Heavy metals: ≤10 ppm
• Residual solvents: ≤5000 ppm (total), ethanol ≤5000 ppm, acetone ≤5000 ppm
• Clarity of 0.1% solution in methanol: ≤5 NTU
• Color of 0.1% solution in methanol: ≤50 APHA
⚠️ Note: This utility is for SUBSTANCE (active pharmaceutical ingredient), not finished tablets! Quality control of substance is the first and most important step in production. Only pure substance guarantees safety and efficacy of medical abortion drugs. In some jurisdictions, mifepristone is subject to strict government control.
input.csv
BatchNumber,AssayPercent,SpecificRotation,MeltingPoint,UV240_300Ratio,Impurity11BetaHydroxy,Impurity17AlphaEpimer,TotalImpurities,LossOnDrying,HeavyMetals,ResidualSolvents,EthanolPPM,AcetonePPM,ClarityNTU,ColorAPHA MIFE-2026-001,99.5,-50.0,197.5,2.0,0.2,0.1,0.4,0.3,5,1500,800,500,2,30
URS & FS — user requirements and functional specification
This document defines user requirements and functional specification for the quality-control utility. It supports deployment discussion, IQ/OQ preparation and QC workflow integration.
1. Scope
The Mifepristone Quality Checker utility is used for Mifepristone. The actual input.csv is the source of truth for the input structure; control criteria are defined by the executable and the domain description.
The utility does not use machine learning; decisions are produced by deterministic rules.
Categories: Contraceptives
Tags: assay, biologics, contraceptives, fixed-dose combinations, heavy metals, hormones, impurities, medical gases, residual solvents, solid dosage
2. Execution modes
MifepristoneQualityChecker.exe → demo mode (console output) MifepristoneQualityChecker.exe input.csv output.json → evaluate your data
3. Key controlled areas
- assay / content
- purity and impurities
- residual solvents
- heavy metals / elemental impurities
- pH and physicochemical parameters
4. Domain limits and critical parameters
- ⚠️ CRITICAL for production of medical abortion drugs! Control of 11β-hydroxy and 17α-epimer impurities is mandatory — affects antiprogestogenic activity and safety!
- ⚠️ CRITICAL:
- Specific rotation -52.0° to -48.0° — key identification parameter (in chloroform)
- Melting point 195.0–200.0°C (with decomposition) — confirms structure and purity
- UV ratio A240/A300: 1.8–2.2 — confirms structure (maxima at 240 and 300 nm)
- 11β-Hydroxy impurity ≤0.5% — oxidation product, reduces antiprogestogenic activity
- 17α-Epimer ≤0.5% — stereoisomer, affects receptor binding and safety
- Total impurities ≤1.0% — critical due to high biological activity and narrow therapeutic window
- ⚠️ Special attention: Mifepristone is EXTREMELY sensitive to light, oxygen, and moisture! Requires storage in airtight, light-protected packaging under nitrogen at temperature not exceeding 25°C. Analysis must be performed under light- and moisture-protected conditions! 11β-Hydroxy impurities are especially critical — affect efficacy of pregnancy termination.
- Critical parameters:
- Assay: 97.0–103.0% (on dried basis)
- Specific rotation: -52.0° to -48.0° (in chloroform)
- Melting point: 195.0–200.0°C (with decomposition)
- UV ratio A240/A300: 1.8–2.2
- 11β-Hydroxy impurity: ≤0.5%
- 17α-Epimer: ≤0.5%
- Total impurities: ≤1.0%
- Loss on drying: ≤0.5%
- Heavy metals: ≤10 ppm
- Residual solvents: ≤5000 ppm (total), ethanol ≤5000 ppm, acetone ≤5000 ppm
- Clarity of 0.1% solution in methanol: ≤5 NTU
- Color of 0.1% solution in methanol: ≤50 APHA
- ⚠️ Note: This utility is for SUBSTANCE (active pharmaceutical ingredient), not finished tablets! Quality control of substance is the first and most important step in production. Only pure substance guarantees safety and efficacy of medical abortion drugs. In some jurisdictions, mifepristone is subject to strict government control.
5. URS — user requirements
| ID | Requirement | Criticality | Acceptance criterion |
|---|---|---|---|
| URS-001 | The system shall accept an input.csv file for Mifepristone with the exact columns listed in the “Input data contract” section. | High | A file with the correct header is processed without manual editing; missing mandatory columns produce FAIL/import error. |
| URS-002 | The system shall support execution without arguments in demo mode and execution with input.csv output.json for user data. | Medium | Both execution scenarios produce a predictable result or clear diagnostic error. |
| URS-003 | The system shall perform rule-based controls for: assay / content, purity and impurities, residual solvents, heavy metals / elemental impurities, pH and physicochemical parameters. | High | Each controlled parameter receives a status and message; the result does not depend on hidden Excel formulas or ML. |
| URS-004 | The system shall preserve traceability between batch/lot, source values, applied rules and final verdict. | High | Output includes batch identifier, source values, parameter statuses and critical findings. |
| URS-005 | The system shall generate machine-readable output.json for LIMS/ELN/MES, batch record and QA/QC review. | High | JSON contains overall status, check array, warnings, failures and source-file reference. |
| URS-006 | The system shall support use in the client validation package: URS/FS, IQ/OQ preparation, installation and operational scenario checks. | High | The document, test scenarios and reproducible CSV/JSON flow are suitable for audit and internal approval. |
| URS-007 | The system shall clearly separate technical data errors from specification nonconformities. | Medium | Schema/type errors are not mixed with pharmacopoeial deviations and are reported separately. |
6. input.csv data contract
The source of truth for the input schema is the actual input.csv header. Column names are technical identifiers and are not translated.
| # | Column | Type | Unit | Description | Sample | Control rule |
|---|---|---|---|---|---|---|
| 1 | BatchNumber | identifier | as specified | Batch Number | MIFE-2026-001 | mandatory field; used for batch/lot traceability |
| 2 | AssayPercent | decimal | % | Assay % | 99.5 | numeric value; compared with assay/purity limit from specification or method |
| 3 | SpecificRotation | decimal | as specified | Specific Rotation | -50.0 | mandatory numeric value; rule comparison is performed by the utility |
| 4 | MeltingPoint | decimal | °C | Melting Point | 197.5 | mandatory numeric value; rule comparison is performed by the utility |
| 5 | UV240_300Ratio | decimal | as specified | UV240 300 Ratio | 2.0 | mandatory numeric value; rule comparison is performed by the utility |
| 6 | Impurity11BetaHydroxy | decimal | as specified | Impurity11 Beta Hydroxy | 0.2 | numeric value; compared with individual or total impurity limit |
| 7 | Impurity17AlphaEpimer | decimal | as specified | Impurity17 Alpha Epimer | 0.1 | numeric value; compared with individual or total impurity limit |
| 8 | TotalImpurities | decimal | as specified | Total Impurities | 0.4 | mandatory numeric value; rule comparison is performed by the utility |
| 9 | LossOnDrying | decimal | as specified | Loss On Drying | 0.3 | mandatory numeric value; rule comparison is performed by the utility |
| 10 | HeavyMetals | decimal | as specified | Heavy Metals | 5 | numeric value; checked as elemental/metal impurity |
| 11 | ResidualSolvents | decimal | as specified | Residual Solvents | 1500 | numeric value; checked as residual solvent against the applicable limit |
| 12 | EthanolPPM | decimal | ppm | Ethanol PPM | 800 | numeric value; checked as residual solvent against the applicable limit |
| 13 | AcetonePPM | decimal | ppm | Acetone PPM | 500 | numeric value; checked as residual solvent against the applicable limit |
| 14 | ClarityNTU | decimal | as specified | Clarity NTU | 2 | mandatory numeric value; rule comparison is performed by the utility |
| 15 | ColorAPHA | decimal | as specified | Color APHA | 30 | mandatory numeric value; rule comparison is performed by the utility |
CSV example
BatchNumber,AssayPercent,SpecificRotation,MeltingPoint,UV240_300Ratio,Impurity11BetaHydroxy,Impurity17AlphaEpimer,TotalImpurities,LossOnDrying,HeavyMetals,ResidualSolvents,EthanolPPM,AcetonePPM,ClarityNTU,ColorAPHA MIFE-2026-001,99.5,-50.0,197.5,2.0,0.2,0.1,0.4,0.3,5,1500,800,500,2,30
7. FS — functional specification
| ID | Function | Implementation description |
|---|---|---|
| FS-001 | CLI entry point | The executable MifepristoneQualityChecker.exe supports demo mode and input.csv output.json processing mode. |
| FS-002 | CSV parser | The import module reads CSV, validates header, column presence/order, value count and encoding. Decimal values are expected with a dot separator. |
| FS-003 | Field conversion | Each column is converted to the expected type: identifier, text, decimal number, date/time or boolean flag. |
| FS-004 | Domain rule engine | For Mifepristone, explicit rules are applied: range, minimum, maximum, absence of prohibited flag, data completeness or calculation-based check. |
| FS-005 | Criticality handling | Critical violations produce FAIL; non-critical deviations and incomplete data produce WARNING; full conformance produces PASS. |
| FS-006 | JSON writer | output.json stores overall status, per-parameter results, source values, warnings, failures and diagnostic messages. |
| FS-007 | Integration contract | The CSV → JSON format is stable for invocation from LIMS/ELN/MES, scheduled task or wrapper service. |
| FS-008 | Error handling | Schema error, missing file, non-numeric value or JSON write failure returns diagnosable error without silent PASS. |
8. output.json contract
The output file must be suitable for automated processing, audit review and correlation with the source input.csv row.
{
"utility": "MifepristoneQualityChecker",
"api": "Mifepristone",
"batchNumber": "MIFE-2026-001",
"overallStatus": "PASS|WARNING|FAIL",
"checkedAtUtc": "2026-05-18T00:00:00Z",
"checks": [
{
"parameter": "BatchNumber",
"value": "MIFE-2026-001",
"unit": "as specified",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "AssayPercent",
"value": "99.5",
"unit": "%",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "SpecificRotation",
"value": "-50.0",
"unit": "as specified",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "MeltingPoint",
"value": "197.5",
"unit": "°C",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "UV240_300Ratio",
"value": "2.0",
"unit": "as specified",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "Impurity11BetaHydroxy",
"value": "0.2",
"unit": "as specified",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "Impurity17AlphaEpimer",
"value": "0.1",
"unit": "as specified",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
},
{
"parameter": "TotalImpurities",
"value": "0.4",
"unit": "as specified",
"status": "PASS|WARNING|FAIL",
"message": "Rule-based check result"
}
],
"criticalFindings": [],
"sourceFile": "input.csv"
}9. OQ/PQ test scenarios
| ID | Scenario | Expected result |
|---|---|---|
| TC-001 | Valid CSV with expected header and sample row | All rows are processed; output contains PASS/WARNING/FAIL and parameter-level detail. |
| TC-002 | A mandatory input.csv column is missing | Import is rejected or the row receives FAIL with schema reference. |
| TC-003 | A numeric field contains text or a blank value | Type conversion error is recorded; the result is not hidden as PASS. |
| TC-004 | A parameter is outside specification or critical limit | Critical parameters produce FAIL; non-critical deviations produce WARNING according to the rule. |
| TC-007 | Residual solvent above applicable limit | FAIL is produced with solvent name and measured value. |
10. QA/QC, CSV and change control
- Before production use, the client records executable version, checksum, specification/monograph version, test CSV, expected JSON and IQ/OQ results.
- Column names must not be changed without updating the validator and test scenarios.
- The source CSV, output.json and utility version should be stored together as an evidence package.
- Any change in control rules must go through change control and repeated OQ scenario verification.
Included in packages
Algeria: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenArgentina: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenAustralia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenBangladesh: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenBrazil: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenCanada: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenChina: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenColombia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenContraceptives QC Suite
Quality-control package for contraceptives: hormonal APIs, fixed combinations, implants, rings and intrauterine systems.
OpenDemocratic Republic of the Congo: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenEgypt: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenEthiopia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenFrance: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenGermany: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenGynecology QC Suite
QC package for gynecology: hormones, contraceptives, uterotonics, anti-infectives and women’s-health medicines.
OpenIndia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenIndonesia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenIran: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenItaly: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenJapan: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenKenya: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenMexico: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenMyanmar: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenNigeria: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenPakistan: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenPhilippines: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenRussia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenSaudi Arabia: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenSouth Africa: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenSouth Korea: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenSudan: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenTanzania: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenThailand: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenTurkey: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenUganda: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenUnited Kingdom: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenUnited States: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
OpenVietnam: national essential medicines QC package
QC utility package aligned with the country essential/reimbursed medicines list analogue and cross-checked against WHO EML. Only utilities already present in the portal are included; the package is a validation/discussion starting map, not an official registry copy.
Open