Methyl 1-tosyl-1H-1,2,4-triazole-3-carboxylate CAS 1346809-32-2
| CAS No. | 1346809-32-2 |
| Molecular Formula | C11H11N3O4S |
| Molecular Weight | 281.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 1-tosyl-1H-1,2,4-triazole-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.
Methyl 1-tosyl-1H-1,2,4-triazole-3-carboxylate (CAS 1346809-32-2) is a high-purity analytical reference standard with the molecular formula C11H11N3O4S and a molecular weight of 281.29 g/mol.
Structurally, Methyl 1-tosyl-1H-1,2,4-triazole-3-carboxylate (C11H11N3O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 281.29 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H11N3O4S |
| Molecular Weight | 281.29 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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