Trimethoprim Impurity 3 CAS 14779-44-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 14779-44-3 |
| Molecular Formula | C11H14O5 |
| Molecular Weight | 226.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Trimethoprim Impurity 3 (CAS 14779-44-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C11H14O5. Molecular weight: 226.23 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C11H14O5 |
| Molecular Weight | 226.23 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, ethanol, DMSO |
| 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.) | 1961 |
Related Trimethoprim Standards
- Trimethoprim EP Impurity H (CAS 1916-07-0)
- Trimethoprim EP Impurity J-D9 (CAS 84759-05-7)
- Trimethoprim Impurity 14 (CAS 154389-62-5)
- Trimethoprim Impurity 2 (CAS 51210-04-9)
- Trimethoprim Impurity 6 (CAS 7520-69-6)
- Trimethoprim Impurity 2 (CAS 72920-13-9)
- Trimethoprim (CAS 738-70-5)
- Trimethoprim EP Impurity D (CAS 92440-76-1)
Recommended Standards
- 6-(4-Methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 147269-06-5)
- 3-(3-(Tetrahydro-2h-pyran-3-yl)-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 1479275-74-5)
- Methyl 1H-pyrrolo[3,2-h]quinoline-2-carboxylate (CAS 146724-32-5)
- 2-(4-Fluorophenyl)-7-methylimidazo[1,2-a]pyridine-8-carbonitrile (CAS 2197061-78-0)
- 3-Methyl-5-(5-methyl-2-phenyl-1H-imidazol-4-yl)isoxazole (CAS 61531-37-1)
- 3-(5-Isopropyl-2,6-dimethoxypyrimidine-4-carbonyl)-5-methylbenzonitrile (CAS 1097628-99-3)
- 1,3-Bis(furan-2-ylmethyl)urea (CAS 39200-98-1)
- 2-(4-(tert-Butyl)benzyl)-2H-benzo[e][1,2,3,4]thiatriazine 1,1-dioxide (CAS 866151-97-5)
- N'-(4-Methoxy-7-methylbenzo[d]thiazol-2-yl)-2-phenoxyacetohydrazide (CAS 851987-89-8)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
Why CATO?
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