| CAS No. | 19703-86-7 |
| Molecular Formula | C9H8N2S2 |
| Molecular Weight | 208.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
4-Methyl-5-phenyl-2-thioxo-1,3,4-thiadiazol-4-ium-3-ide (CAS 19703-86-7) is a high-purity analytical reference standard with the molecular formula C9H8N2S2 and a molecular weight of 208.30 g/mol.
4-Methyl-5-phenyl-2-thioxo-1,3,4-thiadiazol-4-ium-3-ide (C9H8N2S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 4-Methyl-5-phenyl-2-thioxo-1,3,4-thiadiazol-4-ium-3-ide 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.
| Molecular Formula | C9H8N2S2 |
| Molecular Weight | 208.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |