Mifepristone CAS 84371-65-3
| CAS No. | 84371-65-3 |
| Molecular Formula | C29H35NO2 |
| Molecular Weight | 429.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Mifepristone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 429.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Mifepristone (CAS 84371-65-3), molecular formula C29H35NO2 and molecular weight 429.59 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C29H35NO2 |
| Molecular Weight | 429.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 1 |
Related Mifepristone Standards
- Mifepristone Impurity 10 (CAS CATO-C4X-121610)
- Mifepristone Impurity 16 (CAS CATO-C4X-121616)
- Mifepristone Impurity 3 (CAS CATO-C4X-12163)
- Mifepristone-d3 (CAS CATO-C4X-12164)
- Mifepristone-D6 (CAS 1228097-18-4)
- Mifepristone Impurity 1 (CAS 104004-96-8)
- Mifepristone Impurity 15 (CAS CATO-C4X-121615)
- Mifepristone N-Oxide (CAS 91934-98-4)
Recommended Standards
- Fexofenadine Impurity 42 (CAS 214601-54-4)
- GANT61 (CAS 500579-04-4)
- N-(4-Butylphenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 573950-40-0)
- 3-[1,1-Bis(hexyloxy)ethyl]-1-(3-sulfopropyl)-pyridinium Inner Salt (CAS 637767-15-8)
- 4-((Prop-1-en-1-yloxy)methyl)-1,3-dioxolan-2-one (CAS 130221-78-2)
- 2-Chloro-n-[4-(furan-2-yl)-1,3-thiazol-2-yl]acetamide (CAS 90273-00-0)
- 1-Bromo-3-((cyclopentyloxy)methyl)benzene (CAS 1249769-70-7)
- 3-Amino-5-isopropylbenzoic acid (CAS 123986-62-9)
- (R)-N-benzylpyrrolidin-3-amine dihydrochloride (CAS 954214-45-0)
- 1-(2,4-Dichlorophenyl)-4,4,4-trifluorobutane-1,3-dione (CAS 94856-22-1)
- 2-Chloro-6-phenoxybenzonitrile (CAS 91692-70-5)
- Di-Desmethyl Chlorpromazine Impurity (CAS 2095-17-2)
- Methyl 2-(3-chloropyridin-2-yl)-5-oxopyrazolidine-3-carboxylate (CAS 774600-50-9)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com