Methyl 7-hydroxythieno[2,3-c]pyridine-4-carboxylate CAS 1360934-53-7
| CAS No. | 1360934-53-7 |
| Molecular Formula | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 7-hydroxythieno[2,3-c]pyridine-4-carboxylate (C9H7NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
Methyl 7-hydroxythieno[2,3-c]pyridine-4-carboxylate (CAS 1360934-53-7) is a high-purity analytical reference standard with the molecular formula C9H7NO3S and a molecular weight of 209.22 g/mol.
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.
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 | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 3-hydroxythieno[3,2-b]pyridine-2-carboxylate (CAS 111042-98-9)
- Methyl 3-hydroxythieno[2,3-b]pyridine-2-carboxylate (CAS 111043-01-7)
- Methyl 4-hydroxythieno[2,3-b]pyridine-6-carboxylate (CAS 133223-48-0)
- Methyl 4-hydroxythieno[3,2-c]pyridine-7-carboxylate (CAS 1360929-34-5)
- 6-Acetyl-7-hydroxythieno[3,2-b]pyridin-5(4H)-one (CAS 74695-37-7)
- Methyl 4-hydroxythieno[3,2-d]pyrimidine-7-carboxylate (CAS 1269667-38-0)
- methyl 4-hydroxythieno[3,2-d]pyrimidine-6-carboxylate (CAS 2832388-34-6)
- 7-Hydroxythieno[2,3-c]pyridine-4-carboxylic acid (CAS 1360953-85-0)
Recommended Standards
- 4-(3-Fluoro-4-methoxyphenyl)pyrrolidin-2-one (CAS 1367113-86-7)
- 4-Hydroxy-3-methylthieno[3,2-c]pyridine-7-carboxylic acid (CAS 1360890-49-8)
- N-cyclopropyl-4-fluoro-3-methoxybenzamide (CAS 1370587-33-9)
- 5-Formyl-2-(methylsulfonyl)benzonitrile (CAS 1353878-08-6)
- 3-(Aminomethyl)tetrahydropyran-3-ol (CAS 1342771-66-7)
- 2-(2-Bromo-4-fluorophenoxy)-4-(trifluoromethyl)pyrimidine (CAS 1455953-78-2)
- 3-(Ethylcarbamoyl)-4-methoxybenzenesulfonyl chloride (CAS 1114594-37-4)
- (E)-3-chlorobenzo[b]thiophene-2-carbaldehyde O-(4-chlorobenzyl) oxime (CAS 477854-15-2)
- Eltrombopag impurity 150 (CAS CATO-C4X-1198150)
- 3-methyl-3H-imidazo[4,5-b]pyridin-2-amine (CAS 30458-69-6)
- 4-ethoxy-3-methoxyaniline (CAS 19782-77-5)
- 8-tert-Butyl-4-[2-(trifluoromethyl)benzoyl]-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-82-5)
- 2-(Oxepan-4-yl)propanoic acid (CAS 1516199-75-9)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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