3-Amino-6-ethyl-N-(p-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide CAS 445269-01-2
| CAS No. | 445269-01-2 |
| Molecular Formula | C21H23N3OS |
| Molecular Weight | 365.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Amino-6-ethyl-N-(p-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide is closely related to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Amino-6-ethyl-N-(p-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 445269-01-2) is a high-purity analytical reference standard with the molecular formula C21H23N3OS and a molecular weight of 365.49 g/mol.
Structurally, 3-Amino-6-ethyl-N-(p-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (C21H23N3OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 365.49 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), 3-Amino-6-ethyl-N-(p-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-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 | C21H23N3OS |
| Molecular Weight | 365.49 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 3-Amino-6-ethyl-N-(m-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 445268-89-3)
- 3-Amino-6-ethyl-N-(o-tolyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 445268-95-1)
- 3-Amino-N-benzyl-6-ethyl-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 445268-96-2)
- 2-Amino-4-chloro-3-iodo-5-(trifluoromethyl)benzoic acid (CAS 2655729-06-7)
- 1-((2R)-2-Amino-2-cyclohexylacetyl)-N-(4’-cyanobenzyl)-2-L-azetidinecarboxamide-d11 (CAS 1356930-51-2)
- 2-Amino-6-(tert-butyl)-4-(3,4-dimethoxyphenyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 332127-26-1)
- 2-Amino-6-(tert-butyl)-4-(3-ethoxy-4-hydroxyphenyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 247592-55-8)
- Amino-PEG5-t-butyl ester (CAS 1446282-18-3)
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