Menaquinone impurity 23 CAS 2387-69-1
| CAS No. | 2387-69-1 |
| Molecular Formula | C20H32O |
| Molecular Weight | 288.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Menaquinone impurity 23 (CAS 2387-69-1) is a certified pharmaceutical impurity reference standard with the molecular formula C20H32O and a molecular weight of 288.47 g/mol.
Owing to a steroid core, a hydroxyl group, an ether linkage, Menaquinone impurity 23 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.47 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.
CATO manufactures Menaquinone impurity 23 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 | C20H32O |
| Molecular Weight | 288.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1957 |
Related Menaquinone Standards
- 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 46 (CAS 57766-68-4)
- Menaquinone Impurity 51 (CAS 77898-97-6)
- Menaquinone Impurity 45 (CAS 112162-99-9)
- Menaquinone impurity 14 (CAS 69729-17-5)
Recommended Standards
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- (2-(Dimethyl(4-(methylthio)phenyl)silyl)phenyl)methanol (CAS 1217863-50-7)
- Picosulfate impurity 18 (CAS 26838-86-8)
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- Clomipramine Impurity 9 (CAS CATO-C4X-12659)
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- tert-Butyl thiazolidine-3-carboxylate (CAS 148312-55-4)
- N-benzyl-4-(benzylamino)-6-methyl-2-oxocyclohex-3-ene-1-carboxamide (CAS 142458-11-5)
- 1-Phenylhexane-1,3,5-trione (CAS 1469-95-0)
- N-(4-Cyclopropoxy-2-formylphenyl)methanesulfonamide (CAS 1243446-65-2)
- N1,N4-dibutylpiperazine-1,4-dicarboxamide (CAS 6442-90-6)
- Liraglutide Impurity 18 TFA Salt (CAS CATO-C4X-199218)
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