methyl 3-aminothiophene-2-carboxylate CAS 64615-13-0
| CAS No. | 64615-13-0 |
| Molecular Formula | C6H7NO2S |
| Molecular Weight | 157.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies methyl 3-aminothiophene-2-carboxylate (CAS 64615-13-0), a certified reference material (molecular formula C6H7NO2S, MW 157.19 g/mol) for analytical method development and quality control.
The molecular framework of methyl 3-aminothiophene-2-carboxylate (C6H7NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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.
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.
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 | C6H7NO2S |
| Molecular Weight | 157.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related methyl Standards
- Methyl 5-aminothiophene-2-carboxylate (CAS 14597-58-1)
- Methyl 5-aminothiophene-3-carboxylate (CAS 192879-33-7)
- 4-Aminothiophene-2-carboxylic acid methyl ester (CAS 89499-43-4)
- Methyl 2-Aminothiophene-3-carboxylate (CAS 4651-81-4)
- 2-Aminothiophene-3-carbothioamide (CAS 36050-22-3)
- methyl 4-aminothiophene-3-carboxylate (CAS 69363-85-5)
- 2-aminothiophene-3-carboxylic acid (CAS 56387-08-7)
- 3-Aminothiophene-2-carboxamide (CAS 147123-47-5)
Recommended Standards
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- Methyl 4-methylisothiazole-3-carboxylate (CAS 64024-47-1)
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