Trimethoprim EP Impurity F CAS 16285-82-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 16285-82-8 |
| Molecular Formula | C13H15BrN4O2 |
| Molecular Weight | 339.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Trimethoprim EP Impurity F (CAS 16285-82-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C13H15BrN4O2. Molecular weight: 339.19 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C13H15BrN4O2 |
| Molecular Weight | 339.19 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Trimethoprim Standards
- Trimethoprim Impurity 17 (CAS CATO-C4X-122517)
- Trimethoprim EP Impurity I (CAS CATO-C4X-122519)
- Trimethoprim EP Impurity I (E-Isomer) (CAS 118791-61-0)
- Trimethoprim EP Impurity I(Mixture of cis/trans isomers) (CAS 30078-48-9)
- Trimethoprim N-Oxide 1 (CAS 27653-68-5)
- Trimethoprim N-Oxide 3 (CAS 27653-67-4)
- Trimethoprim EP Impurity C (CAS 29606-06-2)
- Trimethoprim EP Impurity A (CAS 213745-86-9)
Recommended Standards
- Phenyl (4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 756520-47-5)
- Letrozole Impurity 9 (CAS 143030-54-0)
- N-(2-Iodophenyl)benzothioamide (CAS 85445-09-6)
- Difelikefalin Impurity 34 (CAS CATO-C4X-304134)
- Orforglipron Impurity 95 (CAS CATO-C4X-323495)
- Methyl 2-Bromo-4-nitrobenzoate (CAS 100959-22-6)
- Cyclopropyl(3-methyloxetan-3-yl)methanol (CAS 2090434-10-7)
- 2-Cyclopropoxy-N-methyl-4-sulfamoylbenzamide (CAS 1243282-62-3)
- 2-Cyclohexylethyl thiazole-4-carboxylate (CAS 923605-07-6)
- Thymopoietin II Peptide Fragment (CAS 56795-64-3)
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