N-(3-chlorophenyl)-3-((3,4-dichlorobenzyl)oxy)thieno[2,3-b]pyridine-2-carboxamide CAS 338757-03-2
| CAS No. | 338757-03-2 |
| Molecular Formula | C21H13Cl3N2O2S |
| Molecular Weight | 463.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures N-(3-chlorophenyl)-3-((3,4-dichlorobenzyl)oxy)thieno[2,3-b]pyridine-2-carboxamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
N-(3-chlorophenyl)-3-((3,4-dichlorobenzyl)oxy)thieno[2,3-b]pyridine-2-carboxamide (CAS 338757-03-2), molecular formula C21H13Cl3N2O2S and molecular weight 463.76 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-(3-chlorophenyl)-3-((3,4-dichlorobenzyl)oxy)thieno[2,3-b]pyridine-2-carboxamide (C21H13Cl3N2O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 463.76 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C21H13Cl3N2O2S |
| Molecular Weight | 463.76 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related N Standards
- N-(4-Chlorophenyl)-3-[(3,4-dichlorophenyl)methoxy]thieno[2,3-b]pyridine-2-carboxamide (CAS 338756-88-0)
- 1-((4-Chlorophenyl)sulfonyl)-4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperazine (CAS 1073354-20-7)
- 3-((3-Chlorophenyl)sulfonyl)-6,7-difluoro-1-(3-fluorobenzyl)quinolin-4(1H)-one (CAS 1326845-99-1)
- Ethyl 4-[4-(4-chlorophenyl)piperazin-1-yl]-6-(trifluoromethyl)quinoline-3-carboxylate (CAS 338748-33-7)
- (3Z)-1-{[4-(3-chlorophenyl)piperazin-1-yl]methyl}-3-[2-(4-fluorophenyl)hydrazin-1-ylidene]-2,3-dihydro-1H-indol-2-one (CAS 338391-78-9)
- 3-((4-Chlorophenyl)sulfonyl)-N-(4-methylbenzyl)-[1,2,3]triazolo[1,5-a]quinazolin-5-amine (CAS 895646-91-0)
- 2-((4-(4-Chlorophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-isopropylphenyl)acetamide (CAS 476484-01-2)
- 2-((5-(((4-Chlorophenyl)amino)methyl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)-N,N-diphenylacetamide (CAS 333314-33-3)
Recommended Standards
- 4-(Benzenesulfonyl)-5-(4-chlorophenyl)-1-(3,4-dichlorophenyl)-1H-pyrazole (CAS 318951-67-6)
- 4-(Benzenesulfonyl)-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazole (CAS 318951-64-3)
- 2-((4-Allyl-5-(2-bromophenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-chlorophenyl)acetamide (CAS 332910-77-7)
- 2-(5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl)-N-(4-chlorophenyl)-2-methylhydrazine-1-carboxamide (CAS 320417-46-7)
- 3-(m-Tolyl)cyclohexanone (CAS 335259-41-1)
- tert-butyl 6-azido-6-benzyl-2-azaspiro[3.3]heptane-2-carboxylate (CAS 2751687-57-5)
- 1-(2-Nitro-4-(trifluoromethyl)phenyl)pyrrolidine (CAS 40832-82-4)
- 4-Chloro-N,N,5-trimethylpyrimidin-2-amine (CAS 71406-68-3)
- 1,3-Isobenzofurandione, 4,7-dibromo (CAS 25834-16-6)
- 4-Methoxy-3-(2,2,2-trifluoroethoxy)aniline hydrochloride (CAS 1170868-19-5)
- Ruxolitinib Impurity 218 (+)-Dibenzoyltartaric Acid Salt (CAS 2920037-87-0)
- 1,3-dimethoxypropane-2-sulfonamide (CAS 1850963-17-5)
- 1-Vinyl-1,4,5,6,7,8-hexahydrocyclohepta[b]pyrrole (CAS 57807-56-4)
- Semaglutide (CAS CATO-C4X-2226105)
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