Propyl 2-amino-4-(2,4-dimethylphenyl)thiophene-3-carboxylate CAS 904998-80-7
| CAS No. | 904998-80-7 |
| Molecular Formula | C16H19NO2S |
| Molecular Weight | 289.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Propyl 2-amino-4-(2,4-dimethylphenyl)thiophene-3-carboxylate.
Propyl 2-amino-4-(2,4-dimethylphenyl)thiophene-3-carboxylate (CAS 904998-80-7), molecular formula C16H19NO2S and molecular weight 289.39 g/mol, is a CATO reference standard with documented purity and traceability.
Propyl 2-amino-4-(2,4-dimethylphenyl)thiophene-3-carboxylate (C16H19NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C16H19NO2S |
| Molecular Weight | 289.39 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 Propyl Standards
- Ethyl 2-amino-4-(2,5-dimethylphenyl)-5-methylthiophene-3-carboxylate (CAS 350990-31-7)
- Ethyl 2-amino-4-(3,4,5-trimethylphenyl)thiophene-3-carboxylate (CAS 379250-77-8)
- Ethyl 2-amino-4-(3,4-dimethylphenyl)-5-methylthiophene-3-carboxylate (CAS 438220-53-2)
- Ethyl 2-amino-4-(4-isopropylphenyl)thiophene-3-carboxylate (CAS 315683-17-1)
- Ethyl 2-amino-4-(4-propylphenyl)thiophene-3-carboxylate (CAS 350990-43-1)
- Methyl 2-amino-4-(4-(sec-butyl)phenyl)thiophene-3-carboxylate (CAS 350990-15-7)
- Methyl 2-amino-4-(4-(tert-butyl)phenyl)thiophene-3-carboxylate (CAS 350989-95-6)
- Methyl 2-amino-4-(4-butylphenyl)thiophene-3-carboxylate (CAS 350990-34-0)
Recommended Standards
- N-Ethyl-2,5-dimethyl-N-phenylbenzenesulfonamide (CAS 26004-48-8)
- Propyl 2-amino-4-(2,5-dimethylphenyl)thiophene-3-carboxylate (CAS 350997-22-7)
- N-Ethyl-2,2-diphenylacetamide (CAS 6159-08-6)
- Propyl 2-amino-4-(3,4-dimethylphenyl)thiophene-3-carboxylate (CAS 904998-83-0)
- (S)-2-Amino-2-(pyridin-2-yl)ethan-1-ol dihydrochloride (CAS 1269652-00-7)
- 6-Fluoro-4,8-dimethylquinoline (CAS 1420791-11-2)
- Ethyl 3-({N'-[(1E)-(4-methylphenyl)methylidene]hydrazinecarbonyl}methoxy)pyrido[1,2-a]indole-10-carboxylate (CAS 339020-46-1)
- Beclomethasone dipropionate Impurity 23 (CAS CATO-C4X-147423)
- 3-(chlorosulfonyl)benzene-1-sulfonyl fluoride (CAS 2489-52-3)
- 1-[4-(methylsulfanyl)phenyl]-5-oxopyrrolidine-3-carboxylic acid (CAS 63674-53-3)
- 2-Chloro-1-(3-(thiophen-2-yl)-7-(thiophen-2-ylmethylene)-3,3a,4,5,6,7-hexahydro-2h-indazol-2-yl)ethan-1-one (CAS 379725-89-0)
- 3-bromo-4-phenyl-3,4-dihydro-2H-[1,3]thiazino[3,2-a]benzimidazole (CAS 750570-81-1)
- Methyl-1-boc-3-pyrrolidine carboxylate (CAS 122684-33-7)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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