Clinofibrate Impurity 2 CAS 30299-17-3
| CAS No. | 30299-17-3 |
| Molecular Formula | C23H28O4 |
| Molecular Weight | 368.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Clinofibrate Impurity 2 (C23H28O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 368.47 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Clinofibrate Impurity 2 (CAS 30299-17-3), a pharmacopoeial impurity reference standard (molecular formula C23H28O4, MW 368.47 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C23H28O4 |
| Molecular Weight | 368.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Related Clinofibrate Standards
Recommended Standards
- Hydrocortisone Impurity N3 (CAS 23460-76-6)
- Dihydrocorynantheine (CAS 50439-68-4)
- Centpropazine (CAS 91315-34-3)
- H-PHe-leu-obzl (CAS 63649-15-0)
- Chloramistine Impurity 8 (stabilized with TBC) (CAS 18218-20-7)
- Drotaverin Impurity 39 (CAS CATO-C4X-243539)
- Epristeride Impurity 4 (CAS CATO-C4X-30084)
- ([1,1'-Biphenyl]-2-yl-2',3',4',5',6'-d5)boronic acid (CAS 1898284-38-2)
- 5-Phenyl-3-(pyridin-4-yl)pyrazin-2-amine (CAS 2373417-03-7)
- 3-Aminobicyclo[1.1.1]pentane-1-carboxylic acid (CAS 406947-32-8)
- Tert-butyl 6-amino-1,4-oxazepane-4-carboxylate hydrochloride (CAS 1414958-25-0)
- (3-Methoxy-4-((tetrahydro-2H-pyran-4-yl)oxy)phenyl)methanamine (CAS 1378892-59-1)
- 5-((2-Nitro-4-(trifluoromethyl)phenyl)thio)-1-phenyl-1h-tetrazole (CAS 300860-97-3)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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