3-Chloro-6-methyl-1-benzothiophene-2-carbonyl chloride CAS 34576-87-9
| CAS No. | 34576-87-9 |
| Molecular Formula | C10H6Cl2OS |
| Molecular Weight | 245.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-6-methyl-1-benzothiophene-2-carbonyl chloride (CAS 34576-87-9), molecular formula C10H6Cl2OS and molecular weight 245.13 g/mol, is a CATO reference standard with documented purity and traceability.
3-Chloro-6-methyl-1-benzothiophene-2-carbonyl chloride (C10H6Cl2OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
As a certified reference material (CRM), 3-Chloro-6-methyl-1-benzothiophene-2-carbonyl 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 | C10H6Cl2OS |
| Molecular Weight | 245.13 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-aminopiperazin-2-yl)boronate (CAS 2223009-22-9)
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- 3-propylpyridazine (CAS 28200-53-5)
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- ethyl 2-(cyanomethyl)-4-methylquinoline-3-carboxylate (CAS 929974-87-8)
- Vanadium nitride,99.9% (CAS 24646-85-3)
- 1-(2,4-Bis(trifluoromethyl)phenyl)-2-bromoethan-1-one (CAS 435271-21-9)
- Orforglipron Impurity 12 (CAS 2212021-81-1)
- 1-(2,4-Dihydroxyphenyl)-2-(3,4-dimethoxyphenyl)-ethanone (CAS 24126-98-5)
- 1,1-Bis(trifluoromethyl)-1,2,3,4-tetrahydroisoquinoline (CAS 1980044-17-4)
- 2-Bromo-5-(4-chlorophenyl)-1,3,4-thiadiazole, 97% (CAS 57709-58-7)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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