Ethyl 1-amino-5-mercapto-1H-1,2,3-triazole-4-carboxylate CAS 126337-27-7
| CAS No. | 126337-27-7 |
| Molecular Formula | C5H8N4O2S |
| Molecular Weight | 188.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 1-amino-5-mercapto-1H-1,2,3-triazole-4-carboxylate (CAS 126337-27-7), molecular formula C5H8N4O2S and molecular weight 188.21 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Ethyl 1-amino-5-mercapto-1H-1,2,3-triazole-4-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 188.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures Ethyl 1-amino-5-mercapto-1H-1,2,3-triazole-4-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C5H8N4O2S |
| Molecular Weight | 188.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 2-Amino-n-methylpyrimidine-5-sulfonamide (CAS 1250161-43-3)
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- Ethyl (3-amino-1,2,4-thiadiazol-5-yl)carbamate (CAS 51863-05-9)
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Recommended Standards
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Why CATO?
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