Thiophene-2,4-dicarboxylic acid CAS 36157-39-8
| CAS No. | 36157-39-8 |
| Molecular Formula | C6H4O4S |
| Molecular Weight | 172.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Thiophene-2,4-dicarboxylic acid (CAS 36157-39-8) is a high-purity analytical reference standard with the molecular formula C6H4O4S and a molecular weight of 172.16 g/mol.
The molecular framework of Thiophene-2,4-dicarboxylic acid (C6H4O4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 Thiophene-2,4-dicarboxylic 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.
Physical & Chemical Properties
| Molecular Formula | C6H4O4S |
| Molecular Weight | 172.16 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.) | 1967 |
| Sulfur Atoms | 1 |
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- thiophene-2-sulfonyl fluoride 382-99-0 VS-0067 (CAS 382-99-0)
- 3-(Thiophene-2-carbonyl)-4h-1,2,4-triazole (CAS 1482169-30-1)
- 2-(thiophene-3-carbonyl)butanenitrile (CAS 1156898-73-5)
- Thiophene-2-sulfonic acid (CAS 79-84-5)
Recommended Standards
- Propyl 5-fluoro-1H-imidazole-4-carboxylate (CAS 959088-25-6)
- 23945-50-8 5-Pyrimidinecarboxylic acid, 1,2,3,4-tetrahydro-4-oxo-2-thioxo- 1,2,3,4-Tetrahydro-4-oxo-2-thioxopyrimidine-5-carboxylic acid EINECS 245-948-8 2-Thiouracil-5-carboxylic acid (CAS 23945-50-8)
- Ethyl 4-fluoro-5-methyl-1H-pyrazole-3-carboxylate (CAS 681034-80-0)
- 3,4-DICARBOXYTHIOPHENE 3,4-THIOPHENEDICARBOXYLIC ACID 4282-29-5 AS06782 Thiophene-3,4-dicarboxylic acid (CAS 4282-29-5)
- 5-Bromo-2-chloro-N,N-dimethylisonicotinamide (CAS 1863453-75-1)
- 1H-Pyrazole-5-carboxylic acid, 3-(4-chlorophenyl)-1-[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-4-[[(trifluoromethyl)sulfonyl]oxy]-, ethyl ester (CAS 1956364-75-2)
- 6-amino-2,3-dimethylbenzonitrile (CAS 943247-70-9)
- 8-Fluoro-2,2-dimethyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1537310-76-1)
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- 3-(Cyclohexanecarboxamido)-3-phenylpropanoic acid (CAS 436088-46-9)
- Benzyl (R)-(4-aminobutan-2-yl)carbamate hydrochloride (CAS 1414960-65-8)
- 4-Iodo-1,5-naphthyridin-3-ol (CAS 1246088-57-2)
- 4-Cyano-1H-imidazole-5-carboxylic acid (hydrochloride) (CAS 2490375-48-7)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
Why CATO?
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