3-Amino-6-ethyl-N-(2-fluorophenyl)-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide CAS 939888-76-3
| CAS No. | 939888-76-3 |
| Molecular Formula | C21H19F4N3OS |
| Molecular Weight | 437.45 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 3-Amino-6-ethyl-N-(2-fluorophenyl)-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 939888-76-3), a certified reference material (molecular formula C21H19F4N3OS, MW 437.45 g/mol) for analytical method development and quality control.
The molecular framework of 3-Amino-6-ethyl-N-(2-fluorophenyl)-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (C21H19F4N3OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 3-Amino-6-ethyl-N-(2-fluorophenyl)-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-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.
Physical & Chemical Properties
| Molecular Formula | C21H19F4N3OS |
| Molecular Weight | 437.45 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-6-ethyl-N-(4-fluorophenyl)-4-(trifluoromethyl)-5H,6H,7H,8H-thieno[2,3-b]quinoline-2-carboxamide (CAS 939893-72-8)
- 3-Amino-N-(4-fluorophenyl)-4-(trifluoromethyl)-5,6,7,8,9,10-hexahydrocycloocta[b]thieno[3,2-e]pyridine-2-carboxamide (CAS 626228-08-8)
- 3-Amino-N-cyclopropyl-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 488706-81-6)
- (R)-2-((4-(4-amino-2-fluorophenoxy)-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)amino)propan-1-ol (CAS 2412358-35-9)
- (S)-2-((4-(4-amino-2-fluorophenoxy)-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)amino)propan-1-ol (CAS 2412358-36-0)
- 2'-Amino-3,3'-diphenyl-[1,1'-binaphthalen]-2-ol (CAS 1242771-09-0)
- 3-Amino-5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl)-2-hydroxybenzoic acid (CAS 857024-60-3)
- 6-Amino-4-(2-(benzyloxy)-5-bromophenyl)-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 315244-84-9)
Recommended Standards
- 3-[[2-[[(1R)-1-(1,3-Benzodioxol-5-yl)propyl]amino]-3,4-dioxo-1-cyclobuten-1-yl]amino]-2-hydroxy-N,N- (CAS 473725-95-0)
- 2-Imino-5-oxo-N,1-bis(pyridin-3-ylmethyl)-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 510761-54-3)
- 2-{[3-cyano-4-(trifluoromethyl)-5H,6H,7H,8H,9H,10H-cycloocta[b]pyridin-2-yl]sulfanyl}-N-(4-fluorophenyl)acetamide (CAS 626228-71-5)
- Cefdinir Impurity 30 (CAS CATO-C4X-121030)
- 4-Pentafluoroethyl-5-trifluoromethyl-pyridine-2-carbonitrile (CAS 1246466-79-4)
- 3-[3-(Aminomethyl)phenyl]-1,3-oxazinan-2-one (CAS 1250502-21-6)
- 2,5-Dimethyl-1-(oxan-3-yl)-1h-pyrrole-3-carboxylic acid (CAS 1344295-04-0)
- n-(1-(1-Methyl-1h-pyrazol-4-yl)ethyl)propan-2-amine (CAS 1248058-58-3)
- Methyl 3-amino-2-bromo-5-fluorobenzoate (CAS 1342063-52-8)
- N-(2H-1,3-benzodioxol-5-ylmethyl)aniline (CAS 3526-42-9)
- {2-[(4-methylphenyl)sulfanyl]pyridin-3-yl}methyl N-phenylcarbamate (CAS 478031-15-1)
- BS2G-d4 (CAS 910292-86-3)
- 2-(Adamantan-2-yl)ethane-1-sulfonyl chloride (CAS 1781686-68-7)
- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
Why CATO?
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