2-(5-Ethylthien-2-yl)-8-methylquinoline-4-carboxylic acid CAS 438229-38-0
| CAS No. | 438229-38-0 |
| Molecular Formula | C17H15NO2S |
| Molecular Weight | 297.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 297.37 g/mol gives 2-(5-Ethylthien-2-yl)-8-methylquinoline-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(5-Ethylthien-2-yl)-8-methylquinoline-4-carboxylic acid (CAS 438229-38-0), molecular formula C17H15NO2S and molecular weight 297.37 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(5-Ethylthien-2-yl)-8-methylquinoline-4-carboxylic acid (C17H15NO2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H15NO2S |
| Molecular Weight | 297.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethylthien Standards
- 2-(5-Ethylthien-2-yl)quinoline-4-carbohydrazide (CAS 956576-46-8)
- 5-(5-Ethylthien-3-yl)-4-(tetrahydrofuran-2-ylmethyl)-4H-1,2,4-triazole-3-thiol (CAS 438227-62-4)
- 6-Ethyl-2-(5-ethylthien-2-yl)quinoline-4-carboxylic acid (CAS 862647-82-3)
- 1-[(5-Ethylthien-2-yl)methyl]piperazine 4899AE 523981-54-6 C11H18N2S (CAS 523981-54-6)
- (5-ethylthien-2-yl)methylamine (CAS 104162-80-3)
Recommended Standards
- 2-(4-Cyclohexylbenzenesulfonamido)acetic acid (CAS 857041-77-1)
- 2-(2,5-Dimethyl-3-thienyl)-6-methylquinoline-4-carboxylic acid (CAS 587850-77-9)
- 2-(5-Ethylthiophen-2-yl)-6-methylquinoline-4-carboxylic acid (CAS 438216-59-2)
- 2-(2-(P-tolylthio)ethyl)isoindoline-1,3-dione (CAS 87943-20-2)
- 6-Benzyl 2-(tert-butyl) 8-(hydroxymethyl)-2,6-diazaspiro[3.4]Octane-2,6-dicarboxylate (CAS 2028341-94-6)
- 1-(3-Fluorophenyl)pentan-1-one (CAS 42916-68-7)
- 2-((5-(Hydroxymethyl)tetrahydrofuran-2-yl)methyl)isoindoline-1,3-dione (CAS 2247618-96-6)
- (2E)-3-[(2,3-Dimethylquinoxalin-6-yl)carbamoyl]prop-2-enoic acid (CAS 672949-88-1)
- 2-(2-(Methylsulfonyl)propan-2-yl)thiazole-5-carboxylic acid (CAS 2280920-92-3)
- (1S,2R,6R)-bicyclo[4.1.0]Heptan-2-amine (CAS 39653-43-5)
- 3-(2-Aminoethyl)-4-bromophenol (CAS 870600-12-7)
- Methyl 5-aminoisoquinoline-3-carboxylate (CAS 80066-70-2)
- 2-(1,3,5-trimethyl-1H-pyrazol-4-yl)propanoic acid (CAS 1007460-61-8)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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