Benzo[d]oxazole-7-sulfonyl chloride CAS 1781899-50-0
| CAS No. | 1781899-50-0 |
| Molecular Formula | C7H4ClNO3S |
| Molecular Weight | 217.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Benzo[d]oxazole-7-sulfonyl chloride is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Benzo[d]oxazole-7-sulfonyl chloride (CAS 1781899-50-0), a certified reference material (molecular formula C7H4ClNO3S, MW 217.63 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H4ClNO3S, Benzo[d]oxazole-7-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 217.63 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Benzo[d]oxazole-7-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 | C7H4ClNO3S |
| Molecular Weight | 217.63 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.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Benzo Standards
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Recommended Standards
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- 1H-Benzotriazole-6-sulfonyl Chloride (CAS 70938-45-3)
- 4-Azido-benzenesulfonyl chloride (CAS 15001-44-2)
- (1-Bromocyclopentyl)-2-thienyl-methanone (CAS 94139-04-5)
- 4-Bromo-2,5-dimethoxy-N-(3-morpholinopropyl)benzenesulfonamide (CAS 898647-75-1)
- (3-(Pyridin-4-ylcarbamoyl)phenyl)boronic acid (CAS 874288-14-9)
- 4-Dimethylphosphorylindan-5-amine (CAS 2267330-89-0)
- 4-Amino-N-methyl-1H-imidazole-5-sulfonamide (CAS 749164-79-2)
- Ethyl 5-chloro-1-(4-fluorophenyl)-1H-pyrazole-4-carboxylate (CAS 288252-75-5)
- 1-(4-(Azetidin-3-yl)piperazin-1-yl)-3-methylbutan-1-one (CAS 1483414-14-7)
- Methyl 2-bromo-4-fluoro-5-hydroxybenzoate (CAS 1357147-45-5)
- 2-(1,4-Dimethyl-1H-pyrazol-3-yl)ethan-1-amine (CAS 1514209-05-2)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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