| CAS No. | 63554-87-0 |
| Molecular Formula | C5H6N2S2 |
| Molecular Weight | 158.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
6-(Methylthio)pyrimidine-4(1H)-thione (CAS 63554-87-0), molecular formula C5H6N2S2 and molecular weight 158.24 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-(Methylthio)pyrimidine-4(1H)-thione (C5H6N2S2) is characterized by a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 6-(Methylthio)pyrimidine-4(1H)-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 | C5H6N2S2 |
| Molecular Weight | 158.24 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |