3-Amino-N,4,6-tris(4-methoxyphenyl)thieno[2,3-b]pyridine-2-carboxamide CAS 332156-07-7
| CAS No. | 332156-07-7 |
| Molecular Formula | C29H25N3O4S |
| Molecular Weight | 511.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Amino-N,4,6-tris(4-methoxyphenyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 332156-07-7), molecular formula C29H25N3O4S and molecular weight 511.59 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Amino-N,4,6-tris(4-methoxyphenyl)thieno[2,3-b]pyridine-2-carboxamide (C29H25N3O4S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 511.59 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C29H25N3O4S |
| Molecular Weight | 511.59 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-((3-Cyano-4-(3,4-dimethoxyphenyl)-6-phenylpyridin-2-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 337499-41-9)
- ML385 (CAS 846557-71-9)
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- Ciprofloxacin Impurity 16 (CAS 1391052-64-4)
- Mal-PEG1-acid (CAS 760952-64-5)
- Ethyl 4-cyano-1H-indole-2-carboxylate (CAS 36106-30-6)
- N1-(2,4-dichlorophenyl)-N2-((dimethylamino)methylene)oxalamide (CAS 477852-84-9)
- Bis(2-chlorophenyl) o-tolylphosphoramidate (CAS 76168-12-2)
- 1-(5-((2,4-Dichlorophenyl)thio)-4-nitrothiophen-2-yl)ethanone (CAS 1247819-56-2)
- 2-Ethynyl-5-nitrothiophene (CAS 74610-87-0)
- 1-(5-Chloro-6-methylpyridin-3-yl)ethan-1-one (CAS 1011470-12-4)
- 1-Amino-3-(4-(tert-butyl)phenyl)propan-2-ol (CAS 1225686-51-0)
- Methotrexate Impurity N6 (CAS 4261-17-0)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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