Isothiazole-5-carboxylic Acid CAS 10271-85-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 10271-85-9 |
| Molecular Formula | C4H3NO2S |
| Molecular Weight | 129.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Isothiazole-5-carboxylic Acid (CAS 10271-85-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H3NO2S. Molecular weight: 129.14 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H3NO2S |
| Molecular Weight | 129.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Isothiazole Standards
- Isothiazole-3-carboxylic acid (CAS 4576-90-3)
- Isothiazole-4-carboxylic acid (CAS 822-82-2)
- Isothiazole-3-carboxamide (CAS 24342-43-6)
- Isothiazole-4-carboxamide (CAS 24340-75-8)
- Isothiazole-5-carboxamide (CAS 3683-98-5)
- 4-Methyl-isothiazole-5-carbaldehyde (CAS 88511-33-5)
- Isothiazole-4,5-diamine (CAS 153970-46-8)
- Methyl isothiazole-3-carboxylate (CAS 1001907-72-7)
Recommended Standards
- Maltol-d3 (CAS 132331-92-1)
- 4-(Mercaptomethylene)oxazol-5(4H)-one (CAS 112463-59-9)
- Thymine Methyl-d (CAS 68941-98-0)
- 5-(Aminomethyl)-1h-pyrazol-3-ol (CAS 33512-95-7)
- 4-Methoxyphenyl 4-O-(b-D-galactopyranosyl)-β-D-glucopyranoside (CAS 150412-80-9)
- 1-tert-Butyl 3-methyl 3-(trifluoromethyl)pyrrolidine-1,3-dicarboxylate (CAS 1823256-51-4)
- 2-(3-(Benzo[d][1,3]dioxol-5-yl)-6-oxopyridazin-1(6H)-yl)propanoic acid (CAS 1286713-78-7)
- 5-(4-Methoxyphenyl)-5-oxovaleronitrile (CAS 26823-02-9)
- oxane-3,4-diol (CAS 100937-79-9)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
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