Trimethoprim EP Impurity E CAS 60729-91-1
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 60729-91-1 |
| Molecular Formula | C14H17N3O4 |
| Molecular Weight | 291.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Trimethoprim EP Impurity E (CAS 60729-91-1) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C14H17N3O4. Molecular weight: 291.30 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C14H17N3O4 |
| Molecular Weight | 291.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
Related Trimethoprim Standards
- Trimethoprim EP Impurity D (CAS 92440-76-1)
- Trimethoprim (CAS 738-70-5)
- Trimethoprim Impurity 1 (CAS 93885-69-9)
- Trimethoprim-13C3 (CAS 1189970-95-3)
- Trimethoprim-d3 (CAS 1189923-38-3)
- Trimethoprim-d9 (CAS 1189460-62-5)
- Trimethoprim EP Impurity B (CAS 30806-86-1)
- Trimethoprim EP Impurity A (CAS 213745-86-9)
Recommended Standards
- Bendamustine Nitro Ethyl Ester Impurity (CAS 3543-72-4)
- Ramosetron Impurity 14 (CAS 171967-71-8)
- Nintedanib Impurity 112 (CAS CATO-C4X-1814112)
- Olaparib Impurity 56 (CAS CATO-C4X-113556)
- Canagliflozin Impurity 14 (CAS CATO-C4X-112314)
- 2,3-Dihydropyrazolo[5,1-b]oxazol-6-amine hydrochloride (CAS 2089650-28-0)
- Ethyl 4-bromo-6-methoxypyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1416439-70-7)
- (2-Fluoro-benzyl)-(tetrahydro-furan-2-ylmethyl)-amine hydrobromide (CAS 1135232-92-6)
- (1-Ethyl-2,2-dimethyl-1,2-dihydroquinolin-4-yl)methanesulfonic acid (CAS 823803-39-0)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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