3-Amino-5-methylthiophene-2-carboxylic acid CAS 100047-53-8
| CAS No. | 100047-53-8 |
| Molecular Formula | C6H7NO2S |
| Molecular Weight | 157.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-Amino-5-methylthiophene-2-carboxylic acid 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.
CATO supplies 3-Amino-5-methylthiophene-2-carboxylic acid (CAS 100047-53-8), a certified reference material (molecular formula C6H7NO2S, MW 157.19 g/mol) for analytical method development and quality control.
3-Amino-5-methylthiophene-2-carboxylic acid (C6H7NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 2-Amino-N-methylthiazole-5-carboxamide (CAS 1177494-20-0)
- 4-Amino-N,1-dimethyl-5-imidazolecarboxamide-d3 (CAS 1189466-51-0)
- 5-Amino-3-methyl-1,2-oxazole-4-carbothioamide (CAS 130783-67-4)
- 5-Amino-4-methylthiophene-2-carboxylic acid (CAS 1368184-83-1)
- 2-Amino-5-methylthiazole-4-carboxamide (CAS 1378861-82-5)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com