| CAS No. | 1004-39-3 |
| Molecular Formula | C4H6N4S |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures 4,6-Diaminopyrimidine-2(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.
CATO supplies 4,6-Diaminopyrimidine-2(1H)-thione (CAS 1004-39-3), a certified reference material (molecular formula C4H6N4S, MW 142.18 g/mol) for analytical method development and quality control.
Owing to a nitrile group, sulfur-containing functionality, 4,6-Diaminopyrimidine-2(1H)-thione is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 142.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
| Molecular Formula | C4H6N4S |
| Molecular Weight | 142.18 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.) | 1957 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |