3-Hydroxyisothiazole-5-carboxylate CAS 62020-63-7
| CAS No. | 62020-63-7 |
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Hydroxyisothiazole-5-carboxylate.
3-Hydroxyisothiazole-5-carboxylate (CAS 62020-63-7) is a high-purity analytical reference standard with the molecular formula C4H4N2O2S and a molecular weight of 144.15 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 3-Hydroxyisothiazole-5-carboxylate is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Hydroxyisothiazole-5-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H4N2O2S |
| Molecular Weight | 144.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxyisothiazole Standards
Recommended Standards
- 3-Amino-4-isothiazolecarboxylic Acid (CAS 920459-08-1)
- 3-Hydroxythiophene-2-carboxylic acid (CAS 5118-07-0)
- 2-Nitrothiophen-3-amine (CAS 52003-20-0)
- 3-Methyl-5-nitroisothiazole (CAS 36778-16-2)
- Methyl 2-(2-amino-5-bromothiazol-4-yl)-2-oxoacetate (CAS 914349-73-8)
- 9-Amino-6,8-di-1,3,2-dithiarsolan-2-yl-5H-benzo[a]phenoxazin-5-one (CAS 345340-48-9)
- 6-Chloro-2,4-bis(4-morpholinyl)pyrimidine (CAS 10244-24-3)
- 2-Chloro-6-(difluoromethyl)-5-fluoronicotinic acid (CAS 1804494-85-6)
- Tert-butyl 4,5-diaminoazepane-1-carboxylate (CAS 1822558-32-6)
- Episterol (CAS 474-68-0)
- [3-methyl-6-phenyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-1-yl]acetic acid (CAS 937605-80-6)
- Benzopyrene Related Compound 11 (CAS 13345-25-0)
- Ethyl 2-(6-chloro-4-oxo-1,4-dihydropyrimidin-2-yl)acetate (CAS 1384070-82-9)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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 18665070610 / Nicole.chen@cato-chem.com