1H-1,2,3-Triazole-5-sulfonyl chloride CAS 895132-46-4
| CAS No. | 895132-46-4 |
| Molecular Formula | C2H2ClN3O2S |
| Molecular Weight | 167.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1H-1,2,3-Triazole-5-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1H-1,2,3-Triazole-5-sulfonyl chloride (CAS 895132-46-4), molecular formula C2H2ClN3O2S and molecular weight 167.57 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C2H2ClN3O2S, 1H-1,2,3-Triazole-5-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 167.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C2H2ClN3O2S |
| Molecular Weight | 167.57 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related H Standards
- 2H-1,2,3-Triazole-4-sulfonyl chloride (CAS 1106727-22-3)
- 4H-1,2,4-triazole-3-sulfonyl chloride (CAS 6461-29-6)
- 2-(1H-1,2,3-Triazole-4-carboxamido)acetic acid (CAS 136868-57-0)
- 3-(4h-1,2,4-Triazole-3-carbonyl)pyridine (CAS 1483129-37-8)
- 4-(4H-1,2,4-triazole-3-carbonyl)pyridine (CAS 1520363-52-3)
- 2-(4H-1,2,4-triazole-3-carbonyl)pyridine (CAS 1909336-64-6)
- 1H-1,2,3-triazole-4-carbaldehyde 1H-[1,2,3]TRIAZOLE-4-CARBALDEHYDE 32829-25-7 (CAS 32829-25-7)
- 5-Phenyl-1,2,3-triazole-4-carbaldehyde (CAS 51719-84-7)
Recommended Standards
- 1,2-Oxazole-4-sulfonyl chloride (CAS 933740-94-4)
- Oxazole-2-sulfonyl chloride (CAS 184170-50-1)
- 2-Chloro-4-methylbenzoxazole (CAS 1001185-81-4)
- 5-Chloro-1,1-dioxo-isothiazol-3-one (CAS 1239320-63-8)
- 5-((4-Methyl-4h-1,2,4-triazol-3-yl)thio)pentan-1-amine (CAS 1248170-44-6)
- Methyl 2-(4-hydroxyphenyl)-2-methylpropanoate (CAS 123342-40-5)
- 2-(1-(tert-Butoxycarbonyl)pyrrolidin-2-yl)acetic Acid (CAS 194154-91-1)
- N-(2-((6-((6-Methylpyridin-2-yl)amino)pyridazin-3-yl)amino)ethyl)propane-1-sulfonamide (CAS 1021114-57-7)
- 4,8-Bis(5-(2-ethylhexyl)thieno[3,2-b]thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene (CAS 1494614-30-0)
- 2-Amino-4-methoxy-3-nitropyridine (CAS 84487-08-1)
- (4-Bromophenyl)(2-methylpiperidin-1-yl)methanone (CAS 331256-17-8)
- Boc-Val-Leu-Lys-AMC (CAS 73554-84-4)
- 3,6-Dihydro-2H-pyran-3-one (CAS 98166-23-5)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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