Menaquinone Impurity 51 CAS 77898-97-6
| CAS No. | 77898-97-6 |
| Molecular Formula | C20H32 |
| Molecular Weight | 272.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Menaquinone Impurity 51 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.
As a process- or degradation-related impurity, Menaquinone Impurity 51 (CAS 77898-97-6, C20H32) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Menaquinone Impurity 51 (C20H32) is characterized by an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C20H32 |
| Molecular Weight | 272.47 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
Related Menaquinone Standards
- Menaquinone impurity 14 (CAS 69729-17-5)
- Menaquinone Impurity 46 (CAS 57766-68-4)
- Menaquinone impurity 23 (CAS 2387-69-1)
- Menaquinone Impurity 12 (CAS 3790-76-9)
- Menaquinone impurity 40 (CAS 3879-62-7)
- Menaquinone impurity 41 (CAS 3879-61-6)
- Menaquinone impurity 17 (CAS 62796-50-3)
- Menaquinone Impurity 45 (CAS 112162-99-9)
Recommended Standards
- CL32869MEP 477-75-8 Triptycene 9,10-o-Benzenoanthracene, 9,10-dihydro- (8CI) 9,10(1',2')-Benzenoanthracene, 9,10-dihydro- 9,10-o-Benzeno-9,10-dihydroanthracene EINECS 207-519-3 NSC 122926 Tribenzobicyclo(2.2.2)octatriene Tryptycene UNII-CL32869MEP (CAS 477-75-8)
- Ent-Kaurene (CAS 562-28-7)
- Tris(N,N-dimethylaminopropyl)amine (CAS 33329-35-0)
- Paclitaxel Impurity N3 (CAS 163594-75-0)
- Sildenafil Impurity 93 (CAS CATO-C4X-112893)
- Upadacitinib Impurity 44 (CAS CATO-C4X-240544)
- Gentamicin Impurity 9 (CAS 287916-51-2 (free base))
- 5-Hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one (CAS 158642-42-3)
- N-morpholino-2-nitrobenzenesulfonamide (CAS 866153-04-0)
- (±)-3-Amino-iso-butyric-2,3,3-d3 Acid (CAS 1219803-65-2)
- N-Benzyl-3-cyanobenzenesulfonamide (CAS 808761-46-8)
- 2-Bromo-1,3-dihydroxy-10-methylacridin-9(10H)-one (CAS 88901-77-3)
- 3-(5-(Trifluoromethyl)pyridin-3-yl)propan-1-amine hydrochloride (CAS 1951441-79-4)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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