Celecoxib Impurity 70 CAS 6397-71-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 6397-71-3 |
| Molecular Formula | C18H20O2 |
| Molecular Weight | 268.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Celecoxib Impurity 70 (CAS 6397-71-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H20O2. Molecular weight: 268.35 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H20O2 |
| Molecular Weight | 268.35 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 | May oxidize slowly on prolonged air exposure; 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.) | 1958 |
Related Celecoxib Standards
- Celecoxib Impurity 74 (CAS CATO-C4X-104374)
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- Celecoxib Impurity 64 (CAS CATO-C4X-104364)
- Celecoxib Impurity 16 (CAS 915280-81-8)
- Celecoxib Impurity 69 (CAS 36201-04-4)
- Celecoxib Impurity 44 (CAS CATO-C4X-104344)
- Celecoxib Impurity N2 (CAS 94856-20-9)
- Celecoxib Impurity 39 (CAS 6034-55-5)
Recommended Standards
- L-Homocystine (CAS 626-72-2)
- Glimepiride Impurity 19 (CAS 5467-84-5)
- 4-amino-N-(2,6-dimethylphenyl)-3,5-dimethylbenzamide (CAS 109306-94-7)
- Difelikefalin Impurity 85 (CAS CATO-C4X-304185)
- Nicorandil impurity 60 (CAS CATO-C4X-190760)
- N-(16-amino-2-oxo-7,10,13-trioxa-3-azahexadecyl-5,5,6,6,14,14,15,15-d8)-N-methyl-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide (CAS 1217717-09-3)
- Cyclopentane-1,3-diamine (CAS 73211-32-2)
- 2-(Difluoromethyl)-4-fluoro-6-hydroxypyridine-3-methanol (CAS 1806849-77-3)
- (4-Ethylphenyl)(pyridin-2-yl)methanethione (CAS 1397230-57-7)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
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