3,5-Dimethyl-1-benzothiophene-2-sulfonyl chloride CAS 58401-22-2
| CAS No. | 58401-22-2 |
| Molecular Formula | C10H9ClO2S2 |
| Molecular Weight | 260.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H9ClO2S2, 3,5-Dimethyl-1-benzothiophene-2-sulfonyl chloride contains 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 260.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 3,5-Dimethyl-1-benzothiophene-2-sulfonyl chloride (CAS 58401-22-2), a certified reference material (molecular formula C10H9ClO2S2, MW 260.76 g/mol) for analytical method development and quality control.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H9ClO2S2 |
| Molecular Weight | 260.76 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1973 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Dimethyl Standards
- 2,7-Dimethyl-1-benzothiophene-3-sulfonyl chloride (CAS 1384431-09-7)
- 5-(4,5-Dimethyl-1H-pyrazol-3-yl)furan-2-sulfonyl chloride (CAS 1309671-79-1)
- 1,3-dimethyl-2-oxo-benzimidazole-5-sulfonyl chloride (CAS 24134-65-4)
- Dimethyl 1-(3-chloropropyl)-1H-pyrazole-3,5-dicarboxylate (CAS 166324-92-1)
- 2-(3,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)acetonitrile (CAS 1359974-74-5)
- 2,4-Dimethyl-5-(piperidin-1-ylsulfonyl)thiazole (CAS 936083-16-8)
- 4,4-Dimethyl-3-oxo-2-[(phenylamino)(sulfanyl)methylidene]pentanenitrile (CAS 1025530-23-7)
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Recommended Standards
- 3-((4-Chlorophenyl)thio)-2,5-dihydrothiophene 1,1-dioxide (CAS 343376-12-5)
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- 5-chloro-3-methyl-1-tetrahydropyran-2-yl-pyrazolo[4,3-d]pyrimidine (CAS 2766402-38-2)
- 4-Azaspiro[bicyclo[2.2.2]octane-2,4'-imidazolidine]-2',5'-dione (CAS 37874-20-7)
- 2-((5,6-Difluoropyridin-3-yl)amino)-5-methylbenzoic acid (CAS 1119085-77-6)
- 2-Amino-4-fluorobenzothiazole (CAS 20358-06-9)
- 3-Ethyl-7-(pyrrolidin-3-yl)quinoline (CAS 695185-28-5)
- 3-((4-Bromo-3,5-dimethyl-1h-pyrazol-1-yl)methyl)benzohydrazide (CAS 1001757-40-9)
- 7647-15-6 LC1V549NOM Sodium bromide Sodium bromide [USP:JAN] Acunol Sodium bromide (NaBr) Bromide salt of sodium Bromnatrium [German] Caswell No. 750A EINECS 231-599-9 EPA Pesticide Chemical Code 013907 HSDB 5039 NSC 77384 Sedoneural Trisodium tribromide Bromnatrium UNII-LC1V549NOM EC 231-599-9 (CAS 7647-15-6)
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- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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