Trimethoprim EP Impurity H CAS 1916-07-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1916-07-0 |
| Molecular Formula | C11H14O5 |
| Molecular Weight | 226.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Trimethoprim EP Impurity H (CAS 1916-07-0) is a pharmacopoeial impurity 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 | >95% |
| 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.) | 1957 |
Related Trimethoprim Standards
- Trimethoprim Impurity 3 (CAS 14779-44-3)
- 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
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- Rimegepant Impurity 63 (CAS 1071154-76-1)
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- (4-Bromo-2-(trifluoromethyl)phenyl)methanamine (CAS 1192539-95-9)
- N-(5-Amino-2-methylphenyl)-4-(pentyloxy)benzamide (CAS 1020723-65-2)
- n-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1h-pyrazol-4-yl)-2-(2-ethoxy-4-formylphenoxy)acetamide (CAS 881580-08-1)
- Peptide 434 (CAS CATO-CPTD788434)
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