4-Hydroxythiazol-2(3H)-one CAS 625-85-4
| CAS No. | 625-85-4 |
| Molecular Formula | C3H3NO2S |
| Molecular Weight | 117.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Hydroxythiazol-2(3H)-one 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.
4-Hydroxythiazol-2(3H)-one (CAS 625-85-4) is a high-purity analytical reference standard with the molecular formula C3H3NO2S and a molecular weight of 117.13 g/mol.
Based on its molecular formula C3H3NO2S, 4-Hydroxythiazol-2(3H)-one contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 117.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C3H3NO2S |
| Molecular Weight | 117.13 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxythiazol Standards
- 2-(4-Hydroxythiazol-2-yl)acetonitrile (CAS 126743-35-9)
- 2-(4-Hydroxythiazol-2-yl)acetamide (CAS 87947-94-2)
- 2-(4-Hydroxythiazol-2-yl)ethanethioamide (CAS 126106-28-3)
- Ethyl 2-(4-hydroxythiazol-2-yl)acetate (CAS 79878-57-2)
- 2-(4-Hydroxythiazol-2-yl)benzo[d]thiazol-6-ol (CAS 24963-17-5)
- Ethyl 2-((4-hydroxythiazol-2-yl)methyl)-4-methylthiazole-5-carboxylate (CAS 860651-31-6)
- Ethyl 2-(2-((4-hydroxythiazol-2-yl)methyl)thiazol-4-yl)acetate (CAS 860651-37-2)
- 2-(2-((4-Hydroxythiazol-2-yl)methyl)-4-phenylthiazol-5-yl)acetic acid (CAS 860651-43-0)
Recommended Standards
- 3-ethyloxadiazol-3-ium-5-olate (CAS 5226-49-3)
- 5-Amino-1,2,4-thiadiazol-3(2H)-one (CAS 59221-06-6)
- 2-Thioxooxazolidin-4-one (CAS 2346-24-9)
- 5-Amino-2,3-dihydro-1,3,4-thiadiazol-2-one (CAS 33901-30-3)
- 2-bromo-3-methoxyprop-1-ene (CAS 89089-30-5)
- 2-(3-Ethynylphenyl)-2-oxoacetic acid (CAS 2228246-84-0)
- n1-(2,2,2-Trifluoro-1-(tetrahydrofuran-2-yl)ethyl)ethane-1,2-diamine (CAS 1315366-99-4)
- 1,4-Benzenedicarboxylic acid, polymer with 1,2-ethanediol and 1,2-propanediol (CAS 26062-93-1)
- 2,3,5,6-Tetrafluoro-4-hydroxybenzoic acid hydrate 207738-02-1 HOC6F4CO2HxH2O X4300 (CAS 207738-02-1)
- 1-[(2S)-2-(pyridin-3-yl)pyrrolidin-1-yl]ethan-1-one (CAS 5979-94-2)
- 1-amino-N-(2-methoxyethyl)cyclopropane-1-carboxamide hydrochloride (CAS 1909337-10-5)
- 2-(1-(4-Chlorophenyl)vinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 850567-54-3)
- 2-(4-Chloro-3-methylphenoxy)ethan-1-ol (CAS 705-82-8)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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