Vitamin K1 Impurity 22 CAS CATO-C4X-220722
| CAS No. | CATO-C4X-220722 |
| Molecular Formula | C31H44O2 |
| Molecular Weight | 448.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Vitamin K1 Impurity 22 (CAS CATO-C4X-220722) is a certified pharmaceutical impurity reference standard with the molecular formula C31H44O2 and a molecular weight of 448.68 g/mol.
Structurally, Vitamin K1 Impurity 22 (C31H44O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 448.68 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.
As a certified reference material (CRM), Vitamin K1 Impurity 22 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C31H44O2 |
| Molecular Weight | 448.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Vitamin Standards
- Vitamin K1 Impurity 36 (CAS CATO-C4X-220736)
- Vitamin K1 Impurity 38 (CAS CATO-C4X-220738)
- Vitamin K1 Impurity 56 (CAS CATO-C4X-220756)
- Vitamin K1 Impurity 58 (CAS CATO-C4X-220758)
- Vitamin K1 Impurity 68 (CAS CATO-C4X-220768)
- Vitamin K1 Impurity 69 (CAS CATO-C4X-220769)
- Vitamin K1 (CAS 81818-54-4)
- Vitamin K1-18O (Mixture of 1-18O and 4-18O) (CAS 79083-00-4)
Recommended Standards
- Cholic Acid Impurity 47 (CAS 135013-44-4)
- Obeticholic Acid Impurity 17 (CAS 459789-98-1)
- Meptazinol Impurity 3 (CAS CATO-C4X-10303)
- Meptazinol Impurity 2 (CAS CATO-C4X-10302)
- Berberine Impurity 1 (CAS CATO-C4X-21991)
- Mitoxantrone Impurity 23 (CAS CATO-C4X-103423)
- Emedastine EP Impurity C (CAS 122423-32-9(Free Base))
- 5-(Pyridin-3-yl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1086380-42-8)
- Cyclopentanol (CAS 96-41-3)
- 4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid (CAS 6076-13-7)
- 2-Isobutyl-1H-benzo[d]imidazol-6-amine dihydrochloride (CAS 1158206-30-4)
- 3-(4-Methylpiperazine-1-carbonyl)-1-(4-(trifluoromethyl)benzyl)pyridin-2(1H)-one (CAS 338782-11-9)
- 2,2-Dimethyl-3-(thiazol-2-yl)propanoic acid (CAS 1510368-68-9)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
Why CATO?
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