Ethyl 2-amino-4-(4-(sec-butyl)phenyl)-5-methylthiophene-3-carboxylate CAS 350992-26-6
| CAS No. | 350992-26-6 |
| Molecular Formula | C18H23NO2S |
| Molecular Weight | 317.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 2-amino-4-(4-(sec-butyl)phenyl)-5-methylthiophene-3-carboxylate (CAS 350992-26-6) is a high-purity analytical reference standard with the molecular formula C18H23NO2S and a molecular weight of 317.45 g/mol.
The molecular framework of Ethyl 2-amino-4-(4-(sec-butyl)phenyl)-5-methylthiophene-3-carboxylate (C18H23NO2S) 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.
Physical & Chemical Properties
| Molecular Formula | C18H23NO2S |
| Molecular Weight | 317.45 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
- 4-Allyl-5-(1-(4-(tert-butyl)phenoxy)ethyl)-4H-1,2,4-triazole-3-thiol (CAS 862654-18-0)
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- 3-[3-(4-Methylpiperidin-1-yl)propyl]-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one (CAS 443352-76-9)
- 10-(2,4,6-Trimethylphenyl)-10H-phenothiazine (CAS 888009-06-1)
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- 4-Methyl-2-(naphthalen-1-yl)-6-(phenylamino)quinazoline-5,8-dione (CAS 61416-88-4)
- tert-Butyl 4-((2-aminopyridin-3-yl)amino)piperidine-1-carboxylate (CAS 781649-86-3)
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- Pomalidomide Impurity 45 (CAS 1957235-66-3)
- Benzyl 5-amino-2-methylpiperidine-1-carboxylate Hhydrochloride (CAS 2304583-98-8)
- N-(5-Chloro-2-methylphenyl)-6-(1H-pyrazol-1-yl)pyridazine-3-carboxamide (CAS 1351594-90-5)
- 1-(6-Bromoimidazo[1,2-a]pyridin-3-yl)ethanone (CAS 30493-41-5)
- 1-Methoxy-2-methyl-3-(trifluoromethyl)benzene (CAS 1017778-02-7)
- (Thr(PO3H2)231)-Tau Peptide (225-237) trifluoroacetate salt (CAS 1670270-09-3)
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