3-Amino-N-(3-chlorophenyl)-6-(4-chlorophenyl)-4-phenylthieno[2,3-b]pyridine-2-carboxamide CAS 334503-98-9
| CAS No. | 334503-98-9 |
| Molecular Formula | C26H17Cl2N3OS |
| Molecular Weight | 490.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Amino-N-(3-chlorophenyl)-6-(4-chlorophenyl)-4-phenylthieno[2,3-b]pyridine-2-carboxamide (CAS 334503-98-9), molecular formula C26H17Cl2N3OS and molecular weight 490.40 g/mol, is a CATO reference standard with documented purity and traceability.
3-Amino-N-(3-chlorophenyl)-6-(4-chlorophenyl)-4-phenylthieno[2,3-b]pyridine-2-carboxamide (C26H17Cl2N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3-Amino-N-(3-chlorophenyl)-6-(4-chlorophenyl)-4-phenylthieno[2,3-b]pyridine-2-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C26H17Cl2N3OS |
| Molecular Weight | 490.40 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-N-(2-chlorophenyl)-4-(4-chlorophenyl)-6-phenylthieno[2,3-b]pyridine-2-carboxamide (CAS 332385-54-3)
- 2-(4-(2-Amino-3-cyano-5-oxo-5,6,7,8-tetrahydro-4H-chromen-4-yl)-2-methoxyphenoxy)-N-(3-nitrophenyl)acetamide (CAS 333778-09-9)
- 5-Amino-2-{4-[4-(5-amino-1,3-dioxo-2,3-dihydro-1h-isoindol-2-yl)phenoxy]phenyl}-2,3-dihydro-1h-isoindole-1,3-dione (CAS 24200-78-0)
- Methyl 6-amino-5-cyano-2-(((3-cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-yl)thio)methyl)-4-(2-fluorophenyl)-4H-pyran-3-carboxylate (CAS 445384-79-2)
- Methyl 6-amino-5-cyano-2-(((3-cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-yl)thio)methyl)-4-(4-fluorophenyl)-4H-pyran-3-carboxylate (CAS 445384-74-7)
- Methyl 6-amino-5-cyano-2-[({3-cyano-5H,6H,7H,8H,9H-cyclohepta[b]pyridin-2-yl}sulfanyl)methyl]-4-(3-fluorophenyl)-4H-pyran-3-carboxylate (CAS 445384-81-6)
- 3-Amino-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-6-methyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 627053-26-3)
- 8-(2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridyl)-2'-deoxyguanosine (CAS 142784-25-6)
Recommended Standards
- N-(2-chlorophenyl)-2-((4-(4-chlorophenyl)-3-cyano-6-phenylpyridin-2-yl)thio)acetamide (CAS 332385-53-2)
- 3,5-Dichloro-N-{1-[(4-methoxyphenyl)methyl]-5,6-dimethyl-1H-1,3-benzodiazol-4-yl}benzene-1-sulfonamide (CAS 338955-01-4)
- N-(3-chlorophenyl)-2-((4-(2-chlorophenyl)-3-cyano-6-phenylpyridin-2-yl)thio)acetamide (CAS 332162-79-5)
- 3,5-Dichloro-N-(1-(3-methoxybenzyl)-5,6-dimethyl-1H-benzo[d]imidazol-4-yl)benzenesulfonamide (CAS 338964-33-3)
- (S)-3-Isobutylmorpholine-2,5-dione (CAS 128996-90-7)
- 4-(4-Oxo-3,4-dihydroquinazolin-2-yl)butanoic acid (CAS 95494-51-2)
- 6-(2-Chlorophenethyl)-1,3,5-triazine-2,4-diamine (CAS 6623-32-1)
- 1-(2-Amino-5-methylphenyl)-2-(pyrrolidin-1-yl)ethanone (CAS 791015-18-4)
- 5-(3-Chloro-2-methylphenyl)-2-phenyl-3-(pyridin-3-yl)tetrahydro-4H-pyrrolo[3,4-d]isoxazole-4,6(5H)-dione (CAS 1005103-62-7)
- Ethyl 11-hydroxyundecanoate (CAS 6149-49-1)
- 1-(Benzo[d]thiazol-2-ylmethyl)cyclopentane-1-carboxylic acid (CAS 852033-48-8)
- 3-((4-Phenylpiperazin-1-yl)methyl)-1H-indole (CAS 4281-72-5)
- (2-Hydroxy-6-(piperidin-2-yl)pyridin-4-yl)boronic acid (CAS 2256708-73-1)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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