Progesterone Impurity 55 CAS 76763-14-9
| CAS No. | 76763-14-9 |
| Molecular Formula | C19H28O5 |
| Molecular Weight | 336.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 336.42 g/mol gives Progesterone Impurity 55 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Progesterone Impurity 55 (CAS 76763-14-9) is a certified pharmaceutical impurity reference standard with the molecular formula C19H28O5 and a molecular weight of 336.42 g/mol.
Structurally, Progesterone Impurity 55 (C19H28O5) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 336.42 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Progesterone Impurity 55 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H28O5 |
| Molecular Weight | 336.42 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Related Progesterone Standards
- Progesterone Impurity 56 (CAS 3510-20-1)
- Progesterone Impurity N2 (CAS 40736-33-2)
- Progesterone Impurity 34 (CAS 60966-36-1)
- Progesterone Impurity 84 (CAS 66512-11-6)
- Progesterone Impurity 19 (CAS 16031-66-6)
- Progesterone Impurity 9 (CAS 641-80-5)
- Progesterone Impurity 15 (CAS 604-20-6)
- Progesterone Impurity 16 (CAS 604-19-3)
Recommended Standards
- rel-Methyl 2-((1R,3R,4''S,5R,5'S,7R)-dispiro[adamantane-2,3'-[1,2,4]trioxolane-5',1''-cyclohexan]-4''-yl)acetate (CAS 774597-73-8)
- (9H-Fluoren-9-yl)methyl 4-amino-4-methylpiperidine-1-carboxylate (CAS 1001754-52-4)
- O-(2-Aminoethyl)-O-[2-(Boc-amino)ethyl]triethylene Glycol (CAS 811442-84-9)
- N-(6-((2-Oxo-2-((thiophen-2-ylmethyl)amino)ethyl)thio)pyridazin-3-yl)propionamide (CAS 1021106-75-1)
- Tacrolimus Impurity 42 (CAS CATO-C4X-130042)
- Montelukast Impurity 52 Dicyclohexylamine (CAS CATO-C4X-103152)
- Pidotimod Impurity 7 (CAS CATO-C4X-10787)
- 8-bromo-6-(chloromethyl)imidazo[1,2-a]pyridine (CAS 1823061-56-8)
- (E)-[1-(5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}thiophen-2-yl)ethylidene]amino N-(4-chlorophenyl)carbamate (CAS 321432-66-0)
- tert-Butyl 2-(pyridin-2-yl)-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate (CAS 1400643-14-2)
- 2-Amino-5-chloro-6-(difluoromethyl)nicotinaldehyde (CAS 1805208-64-3)
- n-(Tert-butyl)-4-ureidobenzamide (CAS 1209676-36-7)
- 2-Bromo-6-methoxy-4-methylbenzaldehyde (CAS 133129-29-0)
- Casein kinase II peptide Substrate (CAS 154444-98-1)
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