5-Chloro-benzo[b]thiophene-3-carboxylic acid CAS 16361-24-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 16361-24-3 |
| Molecular Formula | C9H5ClO2S |
| Molecular Weight | 212.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-benzo[b]thiophene-3-carboxylic acid (CAS 16361-24-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H5ClO2S. Molecular weight: 212.65 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H5ClO2S |
| Molecular Weight | 212.65 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- methyl 2-(chlorosulfonyl)cyclobutane-1-carboxylate (CAS 1595733-28-0)
- 1-(2-Fluorophenyl)cyclobutane-1-carbonyl chloride (CAS 151157-31-2)
- methyl (1R,2R)-2-(chlorosulfonyl)cyclobutane-1-carboxylate (CAS 1820581-25-6)
- 1-Methylazetidine-3-carboxylic acid (CAS 875629-26-8)
- 2-(Piperidin-1-ylmethyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine (CAS 1174069-06-7)
- 3-[(4-Chloro-2-ethylphenoxy)methyl]piperidinehydrochloride (CAS 1220028-12-5)
- 1-(3-Ethoxypropyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 845546-17-0)
- 7-Bromo-4-chloro-2-methylquinoline (CAS 143946-45-6)
- 3236-82-6 NbOEt Niobium ethanolate Niobium ethylate Niobium pentaethoxide Niobium(V) ethoxide Pentaethoxyniobium (CAS 3236-82-6)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com