1-Benzothiophene-2-sulfonyl Chloride CAS 90001-64-2
| CAS No. | 90001-64-2 |
| Molecular Formula | C8H5ClO2S2 |
| Molecular Weight | 232.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 232.71 g/mol gives 1-Benzothiophene-2-sulfonyl Chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-Benzothiophene-2-sulfonyl Chloride (CAS 90001-64-2), a certified reference material (molecular formula C8H5ClO2S2, MW 232.71 g/mol) for analytical method development and quality control.
1-Benzothiophene-2-sulfonyl Chloride (C8H5ClO2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. 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.
As a certified reference material (CRM), 1-Benzothiophene-2-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.
Physical & Chemical Properties
| Molecular Formula | C8H5ClO2S2 |
| Molecular Weight | 232.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1982 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Benzothiophene Standards
- Benzothiophene-3-sulfonyl chloride (CAS 18494-87-6)
- Benzothiophene-6-sulfonyl Chloride (CAS 685129-19-5)
- 2-Acetyl-1-benzothiophene-3-carboxylic acid (CAS 573722-47-1)
- 7-methyl-1-benzothiophene-2-sulfonyl chloride (CAS 1158208-53-7)
- Benzothiophene-5-sulfonyl Chloride (CAS 128852-05-1)
- 2-Methyl-1-benzothiophene-3-sulfonyl chloride (CAS 90273-31-7)
- 3-Methyl-1-benzothiophene-2-sulfonyl chloride (CAS 58401-21-1)
- 1-Benzothiophene-2-sulfonamide (CAS 123126-59-0)
Recommended Standards
- 1-(Chloro(phenyl)methyl)-4-methoxybenzene (CAS 6731-11-9)
- 1-Chloro-4-(4-methoxybenzyl)benzene (CAS 37155-52-5)
- 1-(Benzyloxy)-4-chloro-2-methylbenzene (CAS 856381-01-6)
- 1-N-[(4-chlorophenyl)methyl]benzene-1,2-diamine (CAS 5729-18-0)
- 1-(1-Bromo-2,2-dimethoxyethyl)-4-methoxybenzene (CAS 292159-30-9)
- 3-(3,4-Dimethylphenyl)-1,2-oxazol-5-ol (CAS 1354924-02-9)
- 3-Methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinonitrile (CAS 2304817-18-1)
- 2-Chloro-4,5,6,7-tetrahydro-1H-benzimidazole (CAS 1049127-52-7)
- 4-(2-Methylbenzoyl)-1H-pyrrole-2-carbohydrazide (CAS 477858-85-8)
- Ethyl 5-(pyridin-3-yl)-1h-1,2,4-triazole-3-carboxylate (CAS 1343270-71-2)
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