1-methyl-1H-1,2,3-benzotriazole-5-sulfonyl chloride CAS 1500628-77-2
| CAS No. | 1500628-77-2 |
| Molecular Formula | C7H6ClN3O2S |
| Molecular Weight | 231.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-methyl-1H-1,2,3-benzotriazole-5-sulfonyl chloride (CAS 1500628-77-2), a certified reference material (molecular formula C7H6ClN3O2S, MW 231.66 g/mol) for analytical method development and quality control.
1-methyl-1H-1,2,3-benzotriazole-5-sulfonyl chloride (C7H6ClN3O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-methyl-1H-1,2,3-benzotriazole-5-sulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H6ClN3O2S |
| Molecular Weight | 231.66 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 1-methyl-1H-pyrazolo[3,4-b]pyridine-5-sulfonyl chloride (CAS 1423032-80-7)
- 1-Methyl-1H-1,2,3-benzotriazole-6-sulfonyl chloride (CAS 1509279-99-5)
- 2-(Chloromethyl)-2,3-dihydro-1λ,2-benzothiazole-1,1,3-trione (CAS 13947-21-2)
- 6-Chloro-2-(methylsulfonyl)-3H-imidazo[4,5-c]pyridine (CAS 1571064-34-0)
- 1-tert-butyl-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 58046-64-3)
- (S)-2-((tert-butoxycarbonyl)amino)-3-(3-chloro-4-hydroxyphenyl)propanoic acid (CAS 192315-36-9)
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- 3-(5-Bromofuran-2-carboxamido)tetrahydrothiophene-3-carboxylic acid (CAS 1281643-36-4)
- 6-(chloromethyl)-N-ethyl-N-(2-methoxyethyl)pyridin-2-amine hydrochloride (CAS 1803589-27-6)
- 2,6-Dichloro-4-(methylsulfanyl)benzoic acid ethyl ester (CAS 2145093-96-3)
- Tert-butyl (3-hydroxycycloheptyl)carbamate (CAS 1403864-25-4)
- tert-Butyl 5-amino-[3,3'-bithiophene]-4-carboxylate (CAS 1555769-42-0)
- 2-(Difluoromethyl)-3,6-dihydroxypyridine-4-sulfonamide (CAS 1804715-52-3)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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