Betacarotene impurity 11 CAS CATO-C4X-281511
| CAS No. | CATO-C4X-281511 |
| Molecular Formula | C18H26O |
| Molecular Weight | 258.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Betacarotene impurity 11 (CAS CATO-C4X-281511) is a certified pharmaceutical impurity reference standard with the molecular formula C18H26O and a molecular weight of 258.40 g/mol.
The molecular framework of Betacarotene impurity 11 (C18H26O) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H26O |
| Molecular Weight | 258.40 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Betacarotene Standards
- Betacarotene impurity 9 (CAS 3917-41-7)
- Betacarotene EP Impurity A (CAS 1638-05-7)
- Betacarotene impurity 8 (CAS CATO-C4X-28158)
- Betacarotene impurity 10 (CAS CATO-C4X-281510)
- 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
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- Norepinephrine impurity 143 (CAS 2469755-95-9)
- Osimertinib Impurity 70 (CAS CATO-C4X-204570)
- Posaconazole Impurity 174 (CAS 2169241-14-7)
- 5-(P-tolyl)-1,2,4-oxadiazol-3-amine (CAS 23275-54-9)
- 6-Amino-5-nitro-2-thio-uracil-13C2,15N (CAS 1330266-31-3)
- Deflazacort (CAS 14484-47-0)
- 1-(2,6-difluorophenyl)ethane-1,2-diamine dihydrochloride (CAS 2044927-43-5)
- 2-(2-(1H-Benzo[d]imidazol-2-yl)ethyl)-N-(2-chlorophenyl)hydrazinecarbothioamide (CAS 78772-46-0)
- 2,2-Difluoroethane-1-sulfonamide (CAS 1033906-56-7)
- Semaglutide Impurity 115 (CAS CATO-C4X-2226115)
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