Methyl 5-acetyl-2-amino-4-methylthiophene-3-carboxylate CAS 4815-31-0
| CAS No. | 4815-31-0 |
| Molecular Formula | C9H11NO3S |
| Molecular Weight | 213.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 5-acetyl-2-amino-4-methylthiophene-3-carboxylate (C9H11NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Methyl 5-acetyl-2-amino-4-methylthiophene-3-carboxylate (CAS 4815-31-0), molecular formula C9H11NO3S and molecular weight 213.25 g/mol, is a CATO reference standard with documented purity and traceability.
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), Methyl 5-acetyl-2-amino-4-methylthiophene-3-carboxylate 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 | C9H11NO3S |
| Molecular Weight | 213.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- Methyl 2-Amino-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate (CAS 258353-46-7)
- N-(2-(methylsulfonyl)phenyl)acetamide (CAS 20628-27-7)
- Methyl 2-acetamido-5-methylthiophene-3-carboxylate (CAS 67171-50-0)
- N-(2-Acetylphenyl)methanesulfonamide (CAS 5317-80-6)
- N-Benzyloxycarbonyl-O-mesyl-L-serine methyl ester (CAS 132249-34-4)
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