| CAS No. | 79208-64-3 |
| Molecular Formula | C4H6N2S |
| Molecular Weight | 114.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
1-Methyl-1,2-dihydro-3H-pyrazole-3-thione (CAS 79208-64-3) is a high-purity analytical reference standard with the molecular formula C4H6N2S and a molecular weight of 114.17 g/mol.
1-Methyl-1,2-dihydro-3H-pyrazole-3-thione (C4H6N2S) contains 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 1-Methyl-1,2-dihydro-3H-pyrazole-3-thione 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 | C4H6N2S |
| Molecular Weight | 114.17 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |