Betacarotene EP Impurity A CAS 1638-05-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1638-05-7 |
| Molecular Formula | C25H34O |
| Molecular Weight | 350.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Betacarotene EP Impurity A (CAS 1638-05-7) pharmacopoeial impurity standards reference standard. Molecular formula: C25H34O. Molecular weight: 350.54 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C25H34O |
| Molecular Weight | 350.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Betacarotene Standards
- Betacarotene impurity 8 (CAS CATO-C4X-28158)
- Betacarotene impurity 10 (CAS CATO-C4X-281510)
- Betacarotene impurity 11 (CAS CATO-C4X-281511)
- Betacarotene impurity 9 (CAS 3917-41-7)
- Betacarotene EP Impurity B (CAS 472-93-5)
- Betacarotene EP Impurity C (CAS CATO-C4X-28153)
- Betacarotene EP Impurity D (CAS 13312-52-2)
- Betacarotene EP Impurity E (CAS 6811-73-0)
Recommended Standards
- 3,4-Dimethyl-5-propyl-2-furantridecanoic acid (CAS 69662-69-7)
- 3-Allyl-6-(3-((tert-butyldimethylsilyloxy)methyl)-pyrrolidin-1-yl)-2-fluoropyridine (CAS 1228665-48-2)
- ethyl 9-(3,4-dimethyl-5-pentylfuran-2-yl)nonanoate (CAS CATO-C4X-280630)
- Rivaroxaban Impurity 79 (CAS 2097255-05-3)
- Lovastatin Impurity 29 (CAS CATO-C4X-168429)
- Morpholine-4-carboxylic acid (CAS 50881-96-4 (free base))
- 2-(5-(((4-Chlorophenyl)amino)methyl)-4H-1,2,4-triazol-3-yl)acetic acid (CAS 1087648-35-8)
- 1-(Bromomethyl)-2-(phenylsulfonyl)benzene (CAS 105510-34-7)
- Ethyl 5-(sec-butyl)-1,2,4-oxadiazole-3-carboxylate (CAS 1342414-83-8)
- Neuropeptide K, porcine (CAS 106441-70-7)
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