2-Acetyl-3-hydroxythiophene CAS 5556-07-0
| CAS No. | 5556-07-0 |
| Molecular Formula | C6H6O2S |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-Acetyl-3-hydroxythiophene 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.
2-Acetyl-3-hydroxythiophene (CAS 5556-07-0) is a high-purity analytical reference standard with the molecular formula C6H6O2S and a molecular weight of 142.18 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Acetyl-3-hydroxythiophene is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 142.18 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.
Physical & Chemical Properties
| Molecular Formula | C6H6O2S |
| Molecular Weight | 142.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Acetyl Standards
- N-Hydroxythiophene-2-carboximidamide (CAS 53370-51-7)
- 3-Hydroxythiophene-2-carboxamide (CAS 57059-24-2)
- 5-hydroxythiophene-2-carboxylic acid (CAS 1881320-94-0)
- 3-Hydroxythiophene-2-carboxylic acid (CAS 5118-07-0)
- 4-Hydroxythiophene-2-carboxylic acid (CAS 40748-90-1)
- 4-Hydroxythiophene-3-carboxylic acid (CAS 50624-50-5)
- 5-Hydroxythiophene-2-carbaldehyde (CAS 144876-23-3)
- 3-Hydroxythiophene-2-carbaldehyde (CAS 5118-08-1)
Recommended Standards
- 2-Acetamidothiazole (CAS 2719-23-5)
- 2-Amino-4-methylthiazole-5-carbaldehyde (CAS 89021-10-3)
- 2,6-Diaminopyrimidine-4(1H)-thione (CAS 56-08-6)
- 2-Amino-5-mercaptopyridin-3-ol (CAS 2284167-68-4)
- Ethyl 2,2-Difluoro-2-(4-fluoro-3-methylphenyl)acetate (CAS 1227160-98-6)
- 4-(3-Phenylpropioloyl)benzonitrile (CAS 100752-58-7)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-5-nitro-4,6-diphenylpyrimidine (CAS 484647-27-0)
- (2S,4R)-4-(prop-2-yn-1-yl)pyrrolidine-2-carboxylic acid hydrochloride (CAS 1049755-32-9)
- Methyl 5-((2-fluorophenyl)ethynyl)-furan-2-carboxylate (CAS 725228-58-0)
- Relugolix Impurity 54 (CAS 5469-69-2)
- 4-(Benzyloxy)-6-methoxypyridine-2-sulfonyl chloride (CAS 1393572-89-8)
- 2-(trideuteriomethoxy)-5H-phenanthridin-6-one (CAS 1794810-85-7)
- 2-Butoxy-1,3,2-dioxaphospholane 2-oxide (CAS 67554-09-0)
- Protein Kinase C (alpha) Peptide (CAS 159939-84-1)
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