Trimethoprim Impurity 2 CAS 51210-04-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 51210-04-9 |
| Molecular Formula | C12H16O5 |
| Molecular Weight | 240.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Trimethoprim Impurity 2 (CAS 51210-04-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H16O5. Molecular weight: 240.25 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H16O5 |
| Molecular Weight | 240.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Trimethoprim Standards
- Trimethoprim Impurity 3 (CAS 14779-44-3)
- Trimethoprim EP Impurity H (CAS 1916-07-0)
- Trimethoprim EP Impurity J-D9 (CAS 84759-05-7)
- Trimethoprim Impurity 6 (CAS 7520-69-6)
- Trimethoprim Impurity 14 (CAS 154389-62-5)
- Trimethoprim Impurity 2 (CAS 72920-13-9)
- Trimethoprim (CAS 738-70-5)
- Trimethoprim EP Impurity D (CAS 92440-76-1)
Recommended Standards
- Triglycerol(mix) (CAS 56090-54-1)
- 56392-15-5 Propanoic acid, 2-hydroxy-3-(4-(2-methoxyethyl)phenoxy)- H 104/83 2-Hydroxy-3-(4-(2-methoxyethyl)phenoxy)propanoic acid (CAS 56392-15-5)
- Triglycerol (CAS 20411-31-8)
- 3-Amino-4-(butylamino)benzene-1-sulfonamide (CAS 1565-51-1)
- 5-(4-Methoxyphenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 57295-83-7)
- 2-(4-tert-Butylphenoxy)-3-(4-chlorobenzenesulfonyl)-4-methyl-6-phenylpyridine (CAS 339103-46-7)
- Ethyl 3-bromo-2,2-dimethylpropanoate (CAS 2843-18-7)
- 1-Benzyl-2-(hydroxymethyl)imidazole (1-benzyl-1h-imidazol-2-yl)methanol (1-benzyl-1h-imidazol-2-yl)-methanol 1-benzyl-2-hydroxymethylimidazole 1-benzyl-2-(hydroxymethyl)-1h-imidazole 1-benzyl-2-hydroxymethyl imidazole 5376-10-3 (CAS 5376-10-3)
- 1-Methyl-1H-imidazole-2-carboxamide (CAS 20062-51-5)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com