Indometacin EP Impurity H CAS 1601-18-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1601-18-9 |
| Molecular Formula | C20H18ClNO4 |
| Molecular Weight | 371.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Indometacin EP Impurity H (CAS 1601-18-9) pharmacopoeial impurity standards reference standard. Molecular formula: C20H18ClNO4. Molecular weight: 371.81 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C20H18ClNO4 |
| Molecular Weight | 371.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Indometacin Standards
- Indometacin EP Impurity D (CAS CATO-C4X-147012)
- Indometacin EP Impurity E (CAS 807614-94-4)
- Indometacin Impurity 47 (CAS CATO-C4X-147047)
- Indometacin Impurity 54 (CAS CATO-C4X-147054)
- Indometacin Impurity 65 (CAS CATO-C4X-147065)
- Indometacin EP Impurity I (CAS 16401-99-3)
- Indometacin Impurity 55 (CAS CATO-C4X-147055)
- Indometacin EP Impurity G (CAS 402849-26-7)
Recommended Standards
- Ethyl N-(2-chlorophenyl)-N-((4-fluorophenyl)sulfonyl)glycinate (CAS 860609-48-9)
- tert-Butyl 4-(2-chloropyrimidin-4-yloxy)naphthalen-1-ylcarbamate (CAS 1229607-86-6)
- Ethyl 7-(benzyloxy)-4-chloro-6-methoxyquinoline-3-carboxylate (CAS 307353-90-8)
- Cefotaxime EP Impurity B (CAS 66340-28-1)
- Talazoparib Impurity N57 (CAS 1425767-92-5)
- Methyl 2-Aminocyclopentanecarboxylate (CAS 342419-20-9)
- 3-Amino-2-bromo-6-methoxypyridine (CAS 135795-46-9)
- Saquinavir Mesilate - Impurity A (CAS 136465-98-0)
- 2-Chloro-4-((5-chloro-4-(methylamino)pyrimidin-2-yl)amino)-5-methoxybenzoic acid (CAS 1441722-24-2)
- Peptide 434 (CAS CATO-CPTD788434)
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