Methyl 5-amino-2-methylthiophene-3-carboxylate hydrochloride CAS 1239769-40-4
| CAS No. | 1239769-40-4 |
| Molecular Formula | C7H9NO2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 5-amino-2-methylthiophene-3-carboxylate hydrochloride (CAS 1239769-40-4), a certified reference material (molecular formula C7H9NO2SHCl, MW 207.67 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H9NO2SHCl, Methyl 5-amino-2-methylthiophene-3-carboxylate hydrochloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-amino-2-methylthiophene-3-carboxylate hydrochloride 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 | C7H9NO2S HCl |
| Molecular Weight | 207.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
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- 2-methyl-2,5-diazabicyclo[2.2.1]heptane dihydrochloride (CAS 52321-26-3)
- 3-(4-Chlorophenyl)-1H-pyrazole-4-carbaldehydeoxime (CAS 1199253-23-0)
- 2-(4-(Octadecyloxy)phenyl)acetonitrile (CAS 80280-48-4)
- THIOACETIC ACID S-(2-TRIMETHYLSILANYL-ETHYL) ESTER (CAS 18269-56-2)
- Smac-N7 Peptide (CAS 401913-57-3)
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