Choline Fenofibrate Impurity 32 CAS CATO-C4X-101832
| CAS No. | CATO-C4X-101832 |
| Molecular Formula | C20H21ClO4 |
| Molecular Weight | 360.83 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Choline Fenofibrate Impurity 32 (CAS CATO-C4X-101832) is a certified pharmaceutical impurity reference standard with the molecular formula C20H21ClO4 and a molecular weight of 360.83 g/mol.
Based on its molecular formula C20H21ClO4, Choline Fenofibrate Impurity 32 contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 360.83 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C20H21ClO4 |
| Molecular Weight | 360.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Choline Standards
- Choline Fenofibrate Impurity 30 (CAS CATO-C4X-101830)
- Choline Fenofibrate Impurity 31 (CAS CATO-C4X-101831)
- Choline Fenofibrate Impurity 9 (CAS CATO-C4X-10189)
- Choline Fenofibrate Impurity 27 (CAS CATO-C4X-101827)
- Choline Fenofibrate Impurity 28 (CAS CATO-C4X-101828)
- Choline fenofibrate EP Impurity E (CAS 42019-08-9)
- Choline Fenofibrate Impurity 25 (CAS CATO-C4X-101825)
- Choline Fenofibrate Impurity 10 (CAS CATO-C4X-101810)
Recommended Standards
- Fenofibrate Impurity 10 (CAS CATO-C4X-164310)
- n-Benzyl-2-chloro-n-[4-(4-fluorophenyl)-1,3-thiazol-2-yl]acetamide (CAS 730976-67-7)
- Fenofibrate (CAS 49562-28-9)
- 4-[3-(2-Chlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]-1-oxa-4-azaspiro[4.5]decane (CAS 329702-13-8)
- Ketotifen Impurity 32 (CAS 81759-45-7)
- Bisacodyl Impurity 11 (CAS CATO-C4X-203711)
- Dipyridamole EP Impurity C (CAS 54093-92-4)
- 2-(Chloromethyl)-3-(difluoromethyl)-5-fluoro-6-iodopyridine (CAS 1804501-32-3)
- 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,11,11,12,12,13,13,14,14,15,15,16,16,17,17,17-Triacontafluoroheptadecane-8,10-dione (CAS 36554-97-9)
- 2-(4-Methoxyphenyl)-5-(4-octylphenyl)-1,3,4-oxadiazole (CAS 821782-01-8)
- (3-Bromo-4-(cyclopropylmethoxy)-5-methoxyphenyl)methanamine (CAS 1154004-62-2)
- (3-Butoxy-4-methoxyphenyl)(methyl)sulfane (CAS 1443347-09-8)
- rel-(1R,4R)-Methyl 4-aminocyclopent-2-enecarboxylate (CAS 773006-65-8)
- Hexapeptide-9 (CAS 1228371-11-6)
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