Methyl 3-amino-6-ethyl-5-methylthieno[2,3-b]pyridine-2-carboxylate CAS 632291-81-7
| CAS No. | 632291-81-7 |
| Molecular Formula | C12H14N2O2S |
| Molecular Weight | 250.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 3-amino-6-ethyl-5-methylthieno[2,3-b]pyridine-2-carboxylate (CAS 632291-81-7), a certified reference material (molecular formula C12H14N2O2S, MW 250.32 g/mol) for analytical method development and quality control.
Methyl 3-amino-6-ethyl-5-methylthieno[2,3-b]pyridine-2-carboxylate (C12H14N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H14N2O2S |
| Molecular Weight | 250.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1985 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Ethyl 3-amino-5,6-dimethylthieno[2,3-b]pyridine-2-carboxylate (CAS 1042441-82-6)
- 4-Amino-6-(2-ethoxyphenyl)-1,6-dihydro-1,3,5-triazine-2-thiol (CAS 1142207-79-1)
- 4-Amino-6-(4-ethoxyphenyl)-1,6-dihydro-1,3,5-triazine-2-thiol (CAS 1142207-82-6)
- 4-Amino-5-((2,4-dimethylphenoxy)methyl)-4h-1,2,4-triazole-3-thiol (CAS 117480-89-4)
- 2-(3-Amino-piperidin-1-yl)-3h-thieno[3,2-d]pyrimidin-4-one (CAS 1248559-66-1)
- 2-(4-Amino-piperidin-1-yl)-3h-thieno[3,2-d]pyrimidin-4-one (CAS 1248559-69-4)
- Ethyl 2-amino-3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophene-4-carboxylate (CAS 175599-83-4)
- 3-Amino-6-(2-methylpropyl)thieno[2,3-b]pyridine-2-carboxylic acid (CAS 312623-55-5)
Recommended Standards
- Methyl 3-amino-4,5,6-trimethylthieno[2,3-b]pyridine-2-carboxylate (CAS 319491-25-3)
- Methyl 4-((2-aminophenyl)amino)-2,5-dihydrothiophene-3-carboxylate (CAS 61325-23-3)
- Methyl 1-(N,N-dimethylsulfamoyl)piperidine-4-carboxylate (CAS 349540-42-7)
- Methyl 4-[(1,3-benzothiazol-2-yl)amino]butanoate (CAS 612527-80-7)
- n-Cyclohexyl-2,5-difluoroaniline (CAS 1019510-63-4)
- 2-(Adamantan-1-yl)-4-bromo-5-methylphenol (CAS 245434-50-8)
- Methyl 2-(4-(N-cyclopropylsulfamoyl)phenoxy)acetate (CAS 696632-85-6)
- 2-((Methylsulfonyl)methyl)pyrimidine-4-carboxylic acid (CAS 1339366-29-8)
- ethyl 2-(4-bromophenyl)-2-[(propan-2-yl)amino]acetate (CAS 1218613-28-5)
- N-(4-(4-((4-chlorophenyl)sulfonyl)piperazin-1-yl)-3-fluorophenyl)-3-methylbutanamide (CAS 866131-35-3)
- 5-Chloro-2-ethyl-2,3-dihydrobenzofuran-3-amine (CAS 1343870-39-2)
- tert-Butyl N-[(1S)-1-(naphthalen-1-yl)ethyl]carbamate (CAS 683788-80-9)
- Phenoxanol (CAS 55066-48-3)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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