Betacarotene EP Impurity B CAS 472-93-5
| CAS No. | 472-93-5 |
| Molecular Formula | C40H56 |
| Molecular Weight | 536.87 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Betacarotene EP Impurity B (C40H56) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Betacarotene EP Impurity B (CAS 472-93-5) is a certified pharmaceutical impurity reference standard with the molecular formula C40H56 and a molecular weight of 536.87 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Betacarotene EP Impurity B 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 | C40H56 |
| Molecular Weight | 536.87 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Betacarotene Standards
- Betacarotene EP Impurity C (CAS CATO-C4X-28153)
- Betacarotene EP Impurity D (CAS 13312-52-2)
- Betacarotene EP Impurity E (CAS 6811-73-0)
- Betacarotene EP Impurity F (CAS 19361-58-1)
- Betacarotene impurity 12 (CAS CATO-C4X-281512)
- Betacarotene impurity 13 (CAS CATO-C4X-281513)
- Betacarotene impurity 7 (CAS CATO-C4X-28157)
- Betacarotene impurity 10 (CAS CATO-C4X-281510)
Recommended Standards
- (9-cis,15-cis)-β,β-Carotene (CAS 51364-07-9)
- Alpha-Carotene (CAS 432-70-2)
- (6R)-δ-Carotene (CAS 31063-33-9)
- (Z)-9-(Hexadec-9-enoyloxy)octadecanoic acid (CAS 1481636-43-4)
- Finerenone Impurity 170 (CAS CATO-C4X-2880170)
- Fenofibrate Impurity 13 (CAS CATO-C4X-164313)
- Itopride Impurity 8 (CAS CATO-C4X-13778)
- 1-Methyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-6-carbaldehyde (CAS 711024-26-9)
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