5-Bromo-4-methyl-4H-1,2,4-triazole-3-carbaldehyde CAS 1557913-96-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1557913-96-8 |
| Molecular Formula | C4H4BrN3O |
| Molecular Weight | 190.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
5-Bromo-4-methyl-4H-1,2,4-triazole-3-carbaldehyde (CAS 1557913-96-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H4BrN3O. Molecular weight: 190.00 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H4BrN3O |
| Molecular Weight | 190.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2,6-Dichloro-4-fluorobenzonitrile (CAS 1473423-59-4)
- 4-(1,3,2-Dioxaborinan-2-yl)benzaldehyde (CAS 160068-88-2)
- 1-Hydroxy-3,3-dimethyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carbaldehyde (CAS 1437051-71-2)
- P-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl)phosphonic Acid 4-Methylbenzeneamine Salt (CAS 1263361-03-0)
- Tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan-3-yl)pyrrolidine-1-carboxylate (CAS 2222995-76-6)
- 1-Phenyl-4-(thiophen-2-yl)-1h-imidazole-2-thiol (CAS 154548-79-5)
- 1-Cyclopropylpyrrolidine-3-carboxylic acid (CAS 1343668-36-9)
- Betamethasone Impurity 87 (CAS 1549-35-5)
- Isodesmosine Citrate Salt (CAS 991-01-5 (free base))
- Semaglutide Impurity 2 (CAS CATO-C4X-22262)
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