5-chloro-1H-1,2,3-triazole-4-carboxylic acid CAS 908072-81-1
| CAS No. | 908072-81-1 |
| Molecular Formula | C3H6ClN3O2 |
| Molecular Weight | 151.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
5-chloro-1H-1,2,3-triazole-4-carboxylic acid (CAS 908072-81-1), molecular formula C3H6ClN3O2 and molecular weight 151.55 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C3H6ClN3O2, 5-chloro-1H-1,2,3-triazole-4-carboxylic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 151.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
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Recommended Standards
- Ethyl chlorooximeacetate (CAS 14337-43-0)
- Ethyl(E)-2-chloro-2-(hydroxyimino)acetate (CAS 861135-87-7)
- Methyl N-(2-chloroacetyl)carbamate (CAS 13558-70-8)
- Chloroac-Gly-OH (CAS 6319-96-6)
- (S)-2-(((Benzyloxy)carbonyl)amino)-3-((4-methoxybenzyl)thio)propanoic acid (CAS 816446-81-8)
- 1-Methyl-2-(3-(pyridin-4-yl)propyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS 1361112-75-5)
- 1-(3-Bromo-5-fluorophenyl)propan-1-amine (CAS 1270372-06-9)
- Hydromorphone-D3 (CAS 136765-37-2)
- 4-(4-(Benzo[d][1,3]dioxol-5-ylmethyl)-5-methyl-4H-1,2,4-triazol-3-yl)-1-methyl-1H-pyrazol-5-amine (CAS 955976-59-7)
- 1-Benzoyl-3-(6-methyl-1H-indazol-7-yl)thiourea (CAS 860610-11-3)
- 4-Nitro-N-(4-(5-oxo-4,5-dihydropyrazin-2-yl)phenyl)benzamide (CAS 89560-50-9)
- 3-Acetyl-5-methylfuran-2(3H)-one (CAS 307503-83-9)
- 4-Mercaptobutanamide (CAS 64858-83-9)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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