2-Oxo-2,3-dihydro-1H-1,3-benzodiazole-5-sulfonyl chloride CAS 53439-87-5
| CAS No. | 53439-87-5 |
| Molecular Formula | C7H5ClN2O3S |
| Molecular Weight | 232.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-2,3-dihydro-1H-1,3-benzodiazole-5-sulfonyl chloride (CAS 53439-87-5), molecular formula C7H5ClN2O3S and molecular weight 232.64 g/mol, is a CATO reference standard with documented purity and traceability.
2-Oxo-2,3-dihydro-1H-1,3-benzodiazole-5-sulfonyl chloride (C7H5ClN2O3S) 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 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.
CATO manufactures 2-Oxo-2,3-dihydro-1H-1,3-benzodiazole-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 | C7H5ClN2O3S |
| Molecular Weight | 232.64 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 methanol, ethanol, DMSO, water |
| 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.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Oxo Standards
- 1-Oxo-1,3-dihydro-2-benzofuran-4-sulfonyl chloride (CAS 1114822-78-4)
- 3-Oxo-1,3-dihydro-2-benzofuran-5-sulfonyl chloride (CAS 56622-76-5)
- 3,4-Dihydro-2h-1-benzopyran-8-sulfonyl chloride (CAS 1048970-15-5)
- 2-Methyl-2,3-dihydro-1-benzofuran-7-sulfonyl chloride (CAS 1781955-21-2)
- 2-Methyl-2,3-dihydro-1-benzofuran-5-sulfonyl chloride (CAS 369638-66-4)
- 2-(2-Methyl-7,8-dihydro-6H-indeno[5,4-d]thiazol-8-yl)ethanamine (CAS 2622032-54-4)
- 5-Methyl-4,5-dihydro-3H-spiro[benzo[b][1,4]oxazepine-2,4'-piperidine] (CAS 1298175-44-6)
- 1'-Methyl-4,5-dihydro-3h-spiro[benzo[f][1,4]oxazepine-2,4'-piperidine] (CAS 1381722-41-3)
Recommended Standards
- 2-Chlorobenzo[d]oxazole-7-sulfonamide (CAS 928197-31-3)
- 3-Amino-1,2-benzoxazole-5-sulfonyl chloride (CAS 627869-92-5)
- 2-Chloro-5-fluoro-4-isopropoxybenzoic acid (CAS 2624417-18-9)
- 2-Chloro-4-(4-fluorophenyl)nicotinonitrile (CAS 886362-05-6)
- Biotin-PEG4-amino-t-Bu-DADPS-C6-azide (CAS 1260247-50-4)
- 2-(2-(4-(Ethoxycarbonyl)piperidin-1-yl)-2-oxoethoxy)acetic acid (CAS 767299-74-1)
- Ethyl 2-(3-(chlorosulfonyl)phenyl)acetate (CAS 1190373-83-1)
- 3,4-Dimethylpyrano[2,3-c]pyrazol-6(1H)-one (CAS 5203-98-5)
- 3-(3,4-Dimethoxyphenyl)-N-(2-(2-methyl-1H-indol-1-yl)ethyl)acrylamide (CAS 1164541-81-4)
- Cefaclor Impurity 19 (CAS CATO-C4X-127019)
- Ethyl 2-(chlorosulfonyl)benzoate (CAS 103008-54-4)
- 7-Amino-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-2-carboxylic acid (CAS 1780785-28-5)
- Triphenyl-(3,4,5-trimethoxy-benzyl)-phosphonium,bromide (CAS 61240-20-8)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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