5-chloro-1H-1,2,4-triazole-3-carboxylic acid CAS 21733-03-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21733-03-9 |
| Molecular Formula | C3H6ClN3O2 |
| Molecular Weight | 151.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-chloro-1H-1,2,4-triazole-3-carboxylic acid (CAS 21733-03-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C3H6ClN3O2. Molecular weight: 151.55 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C3H6ClN3O2 |
| Molecular Weight | 151.55 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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