4-Acetylthiophene-2-carboxylic acid CAS 88105-23-1
| CAS No. | 88105-23-1 |
| Molecular Formula | C7H6O3S |
| Molecular Weight | 170.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Acetylthiophene-2-carboxylic acid 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-Acetylthiophene-2-carboxylic acid (CAS 88105-23-1), molecular formula C7H6O3S and molecular weight 170.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Acetylthiophene-2-carboxylic acid (C7H6O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 170.19 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C7H6O3S |
| Molecular Weight | 170.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Sulfur Atoms | 1 |
Related Acetylthiophene Standards
- 3-Acetylthiophene-2-carboxylic acid (CAS 13657-90-4)
- 5-Acetylthiophene-3-carboxylic acid (CAS 33148-86-6)
- 5-Acetylthiophene-2-carboxamide(Arotinolol Impurity 7) (CAS 68257-89-6)
- Methyl 3-acetylthiophene-2-carboxylate (CAS 88105-18-4)
- Methyl 5-acetylthiophene-3-carboxylate (CAS 88770-21-2)
- Methyl 5-acetylthiophene-2-carboxylate(Arotinolol Impurity 6) (CAS 4101-81-9)
- 3-Acetylthiophene-2-carbaldehyde (CAS 16363-90-9)
- 4-Acetylthiophene-2-carbaldehyde (CAS 37815-63-7)
Recommended Standards
- 4,6-Dihydro-1H-thieno[3,4-c]pyrazole-3-carboxylic acid (CAS 912635-73-5)
- 4-Amino-3-cyano-4,5-dihydrothiophene-2-carboxylic acid (CAS 96846-51-4)
- 4-(Methylthio)-3-nitropyridine (CAS 38240-32-3)
- 4-Amino-3-nitrobenzenethiol (CAS 80983-47-7)
- Isochromone VI (CAS 167173-91-3)
- 4-Chloro-5-(2-chloroethyl)-6-methyl-2-(methylthio)pyrimidine (CAS 178268-53-6)
- 5H-Pyrazolo[4,3-b]pyridine (CAS 40369-89-9)
- 4-Cyano-3-(difluoromethyl)-2-fluoropyridine-6-methanol (CAS 1806951-58-5)
- (2R,4R)-2-((1H-Indol-3-yl)methyl)-4-amino-2-hydroxypentanedioic acid (CAS 400769-81-5)
- ([Ir(dF(CF3ppy)2)(5,5'-CF3-bpy)]PF6 (CAS 1973375-72-2)
- 2-(4-(6-Chloroimidazo[1,2-a]pyridin-2-yl)phenyl)ethanol (CAS 62705-91-3)
- (2-Fluoro-4-(trifluoromethoxy)phenyl)methanol (CAS 1240257-07-1)
- 1-(4-(3-Bromopropoxy)phenyl)ethan-1-one (CAS 65623-98-5)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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