3-Cyanothiophene-2-carboxylic acid CAS 58231-00-8
| CAS No. | 58231-00-8 |
| Molecular Formula | C6H3NO2S |
| Molecular Weight | 153.16 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-Cyanothiophene-2-carboxylic acid.
3-Cyanothiophene-2-carboxylic acid (CAS 58231-00-8) is a high-purity analytical reference standard with the molecular formula C6H3NO2S and a molecular weight of 153.16 g/mol.
3-Cyanothiophene-2-carboxylic acid (C6H3NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H3NO2S |
| Molecular Weight | 153.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Cyanothiophene Standards
- 5-Cyanothiophene-3-carboxylic acid (CAS 1211589-12-6)
- 2-Cyanothiophene-3-carboxylic acid (CAS 71154-34-2)
- 4-Cyanothiophene-2-carboxylic acid (CAS 406719-77-5)
- 4-Cyanothiophene-3-carboxylic acid (CAS 78071-34-8)
- 5-Cyanothiophene-2-carboxylic Acid (CAS 59786-39-9)
- 5-Cyanothiophene-2-carboxamide (CAS 67808-45-1)
- Methyl 2-cyanothiophene-3-carboxylate (CAS 67808-30-4)
- Methyl 4-cyanothiophene-2-carboxylate (CAS 67808-33-7)
Recommended Standards
- 3-azidothiophene-2-carbaldehyde (CAS 56473-97-3)
- 2-Furoyl isothiocyanate (CAS 80440-95-5)
- 2-Ethynyl-5-nitrothiophene (CAS 74610-87-0)
- 4H,5H,6H-thieno[3,4-c]pyrrole-4,6-dione (CAS 6007-82-5)
- 3-Hydroxy-2-methyl-4-phenylisoxazol-5(2H)-one (CAS 158664-59-6)
- 3-(5-Chlorothiophene-2-carboxamido)benzoic acid (CAS 830340-41-5)
- (Aminocarbonyl)azanyl Carbamic Acid Ester (CAS 4543-62-8)
- 5-(4-Methoxyphenyl)-5-oxovaleronitrile (CAS 26823-02-9)
- 2-(Benzo[d][1,3]dioxol-5-yl)-N-isopentyl-1-oxo-3-(pyridin-3-yl)-1,2,3,4-tetrahydroisoquinoline-4-carboxamide (CAS 1024448-61-0)
- 2-Amino-5-benzylthiazole (CAS 121952-97-4)
- [(S)-1-(2-Amino-ethyl)-pyrrolidin-3-yl]-isopropyl-carbamic acid tert-butyl ester (CAS 1353994-87-2)
- 3-(2,5-Difluorophenyl)-3-oxopropanal (CAS 1019022-66-2)
- 2-(piperazin-1-yl)acetamide dihydrochloride (CAS 939983-61-6)
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
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