5-Chlorothiophene-2-carbonyl Chloride CAS 42518-98-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 42518-98-9 |
| Molecular Formula | C5H2Cl2OS |
| Molecular Weight | 181.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 5-Chlorothiophene-2-carbonyl Chloride (CAS 42518-98-9) pharmaceutical standards reference standard. Molecular formula: C5H2Cl2OS. Molecular weight: 181.04 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C5H2Cl2OS |
| Molecular Weight | 181.04 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorothiophene Standards
- methyl 4-chlorothiophene-2-carboxylate (CAS 88105-19-5)
- methyl 5-chlorothiophene-3-carboxylate (CAS 36157-43-4)
- 5-Chlorothiophene-2-sulfinic acid (CAS 126714-86-1)
- 5-Chlorothiophene-2-carbothioamide (CAS 85347-12-2)
- 4-Chlorothiophene-2-carbohydrazide (CAS 1263212-33-4)
- 3-Chlorothiophene-2-carbohydrazide (CAS 478483-31-7)
- 5-Chlorothiophene-2-carbohydrazide (CAS 351983-31-8)
- Methyl 2-chlorothiophene-3-carboxylate (CAS 76360-42-4)
Recommended Standards
- 2-Chloro-3-thiophenecarbonyl chloride (CAS 332370-74-8)
- Rivaroxaban Impurity 101 (CAS 67482-49-9)
- 3-Chloro-2-thiophenecarbonyl chloride (CAS 86427-02-3)
- 2-Bromo-5-(difluoromethoxy)thioanisole (CAS 1807244-71-8)
- 1-(3-Bromophenyl)cyclopentanemethanamine (CAS 1098349-33-7)
- 2,2'-(2,2'-Dichloro-[1,1'-biphenyl]-3,3'-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 2248640-53-9)
- Ethyl 4-isopropoxy-2-methylbenzoate (CAS 1368033-22-0)
- 2,3-Dihydro-2,2-dimethyl-7-nitrobenzofuran (CAS 13414-55-6)
- 3-(furan-2-yl)-4-methylpentanoic acid (CAS 842954-66-9)
- Liraglutide Impurity 20 TFA Salt (CAS CATO-C4X-199220)
Why CATO?
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