Isopropyl 2-amino-5-methyl-4-(4-propylphenyl)thiophene-3-carboxylate CAS 905011-49-6
| CAS No. | 905011-49-6 |
| Molecular Formula | C18H23NO2S |
| Molecular Weight | 317.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Isopropyl 2-amino-5-methyl-4-(4-propylphenyl)thiophene-3-carboxylate is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Isopropyl 2-amino-5-methyl-4-(4-propylphenyl)thiophene-3-carboxylate (CAS 905011-49-6), molecular formula C18H23NO2S and molecular weight 317.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Isopropyl 2-amino-5-methyl-4-(4-propylphenyl)thiophene-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. 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.
CATO manufactures Isopropyl 2-amino-5-methyl-4-(4-propylphenyl)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 | 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.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Isopropyl Standards
- Isopropyl 2-amino-4-(4-(sec-butyl)phenyl)thiophene-3-carboxylate (CAS 351157-00-1)
- Isopropyl 2-amino-4-(4-isopropylphenyl)-5-methylthiophene-3-carboxylate (CAS 905011-51-0)
- Isopropyl 4-(4-(dimethylamino)phenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 300690-01-1)
- 1-Isopropyl-4-(2,4,5-trifluorophenyl)-1H-indole-3-carbaldehyde (CAS 1350760-35-8)
- 3-[2-isopropyl-6-oxo-4-(trifluoromethyl)-2,6-dihydro-7H-pyrazolo[3,4-b]pyridin-7-yl]propanoic acid (CAS 1018127-01-9)
- 1-Isopropyl-3-(2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 2246802-84-4)
- Isopropyl 4-(benzo[d][1,3]dioxol-5-yl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 292855-64-2)
- Methyl 8-isopropyl-4,6,7-trimethoxy-2-naphthoate (CAS 213682-35-0)
Recommended Standards
- N-(1-Cyanocyclopentyl)-2-(methyl(4-(methylthio)benzyl)amino)acetamide (CAS 850021-45-3)
- N-(2-(Diethylamino)ethyl)-2-methoxyquinoline-4-carbothioamide (CAS 67547-17-5)
- Ethyl 2-amino-4-(4-tert-butylphenyl)-5-methylthiophene-3-carboxylate (CAS 350989-72-9)
- N-Hexyl-N-(3-methyl-1,2,4-thiadiazol-5-yl)-2-phenylacetamide (CAS 62347-72-2)
- (3-Methyl-1-(p-tolyl)-1H-pyrrol-2-yl)methanol (CAS 819081-73-7)
- 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (CAS 77439-76-0)
- Diethyl 1,3-dimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indole-2,5-dicarboxylate (CAS 84990-25-0)
- N-(2-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclohexanecarboxamide (CAS 2575730-58-2)
- 2-[(4-chlorophenyl)sulfonyl]-5-oxo-5-phenylpentanamide 303150-90-5 KS-00002Z3K (CAS 303150-90-5)
- Tert-butyl 3-(((2-fluorobenzyl)amino)methyl)azetidine-1-carboxylate (CAS 887590-08-1)
- 1-(3,4-Dihydroquinoxalin-1(2H)-yl)ethan-1-one (CAS 6639-92-5)
- 5-Amino-[3,3'-bipyridin]-6(1H)-one (CAS 79611-44-2)
- (Z)-2-Ethylbut-2-enenitrile (CAS 34451-75-7)
- Semaglutide impurity 268 (CAS CATO-C4X-2226268)
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