Menaquinone impurity 24 CAS 51921-98-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 51921-98-3 |
| Molecular Formula | C21H34O3 |
| Molecular Weight | 334.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Menaquinone impurity 24 (CAS 51921-98-3), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H34O3. Molecular weight: 334.49 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H34O3 |
| Molecular Weight | 334.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Menaquinone Standards
- Menaquinone impurity 34 (CAS CATO-C4X-207634)
- Menaquinone Impurity 45 (CAS 112162-99-9)
- Menaquinone impurity 17 (CAS 62796-50-3)
- Menaquinone Impurity 12 (CAS 3790-76-9)
- Menaquinone impurity 40 (CAS 3879-62-7)
- Menaquinone impurity 41 (CAS 3879-61-6)
- Menaquinone impurity 23 (CAS 2387-69-1)
- Menaquinone Impurity 46 (CAS 57766-68-4)
Recommended Standards
- 58428-97-0 AR-1I2673 copper(2+) sodium 4-oxido-7-[({5-oxido-6-[(e)-(2-oxido-5-sulfonatophenyl)diazenyl]-7-sulfonatonaphthalen-2-yl}carbamoyl)amino]-3-[(e)-(2-oxido-5-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate(2:4:1) (CAS 58428-97-0)
- n-Decyltetraoxyethylene (CAS 5703-94-6)
- trans,trans-4-(3,4-Difluorophenyl)-4'-butyl-bicyclohexyl (CAS 82832-58-4)
- Empagliflozin impurity 199 (CAS CATO-C4X-1065199)
- Progesterone Impurity 93 (CAS CATO-C4X-150293)
- 5-Bromo-2-(1H-pyrazol-3-yl)pyridine (CAS 811464-25-2)
- 4-Bromo-1-(3,3-dimethylbutyl)-1h-pyrazol-3-amine (CAS 1247438-03-4)
- Ethyl 2-(2-fluoro-3-(trifluoromethyl)phenyl)-acetate (CAS 1260854-01-0)
- 6-(3-Fluorophenyl)-3-(methoxycarbonyl)picolinic acid (CAS 1443288-13-8)
- Exenatide (CAS 141758-74-9（free base）)
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