Ethyl 2-(3-chloro-6-methylbenzo[b]thiophene-2-carboxamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate CAS 314022-54-3
| CAS No. | 314022-54-3 |
| Molecular Formula | C21H20ClNO3S2 |
| Molecular Weight | 433.97 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.
CATO supplies Ethyl 2-(3-chloro-6-methylbenzo[b]thiophene-2-carboxamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 314022-54-3), a certified reference material (molecular formula C21H20ClNO3S2, MW 433.97 g/mol) for analytical method development and quality control.
Ethyl 2-(3-chloro-6-methylbenzo[b]thiophene-2-carboxamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (C21H20ClNO3S2) contains a steroid core, an amide group, a sulfone group, 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, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Ethyl 2-(3-chloro-6-methylbenzo[b]thiophene-2-carboxamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C21H20ClNO3S2 |
| Molecular Weight | 433.97 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 2-Chloro-N-(2,2-diphenylethyl)-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-amine (CAS 264608-14-2)
- N-(5-Chloro-3-(phenylsulfonyl)-1H-indol-2-yl)-2-morpholinoacetamide (CAS 918493-24-0)
- Ethyl (2-(2-(4-chloro-2-methylphenoxy)acetyl)hydrazine-1-carbonyl)phenylalaninate (CAS 1396988-90-1)
- 2-Chloro-4-(4-(dibenzo[b,d]furan-4-yl)phenyl)-6-phenyl-1,3,5-triazine (CAS 2074632-09-8)
- 3-((2-Chloro-5-nitrophenyl)amino)-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5(4H)-one (CAS 30707-68-7)
- 1-[4-Chloro-2-(methylsulfonyl)phenyl]-4-{[6-(trifluoromethyl)-3-pyridinyl]methyl}piperazine (CAS 909666-49-5)
- Ethyl 2-{2-[({[(2-chloro-6-fluorobenzyl)oxy]imino}methyl)amino]-1,3-thiazol-4-yl}benzenecarboxylate (CAS 250713-85-0)
- 3-Chloro-2-({7-[(Z)-2-phenylethenyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}sulfanyl)-5-(trifluoromethyl)pyridine (CAS 251096-57-8)
Recommended Standards
- (Z)-[2-(4-Benzylpiperazin-1-yl)-1-phenylethylidene][(4-chlorophenyl)methoxy]amine (CAS 250714-06-8)
- N-(4-Chlorophenyl)-2-((3-ethyl-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 618879-65-5)
- 5-(4-Chlorobenzoyl)-N,N-dimethyl-3-(4-phenoxyphenyl)thiophen-2-amine (CAS 338976-24-2)
- Saxagliptin Impurity 66 (CAS CATO-C4X-104966)
- (2-Ethoxy-3,5-dimethylphenyl)boronic acid (CAS 1334221-08-7)
- 2-(1-Ethoxyvinyl)-6-methoxy-3-nitropyridine (CAS 1075259-74-3)
- 2,7-Dibromo-9-vinyl-9H-carbazole (CAS 1438252-33-5)
- (1-methyl-1H-indazol-3-yl)methanol (CAS 1578-96-7)
- Difluoroethylazide (CAS 1251037-67-8)
- Temazepam Glucuronide (CAS 3703-53-5)
- 2,6-Dibromo-3-fluorobenzenesulfonyl chloride (CAS 1804931-94-9)
- 3-Acetyl-3-azabicyclo[3.1.0]Hexane-1-carboxylic acid (CAS 1268521-07-8)
- 4-(4-Chlorobutoxy)-2-phenylquinoline-8-carboxamide (CAS 662159-70-8)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com