4-Amino-6-mercapto-1,3,5-triazin-2(5H)-one CAS 21119-81-3
| CAS No. | 21119-81-3 |
| Molecular Formula | C3H4N4OS |
| Molecular Weight | 144.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-Amino-6-mercapto-1,3,5-triazin-2(5H)-one (CAS 21119-81-3), a certified reference material (molecular formula C3H4N4OS, MW 144.16 g/mol) for analytical method development and quality control.
4-Amino-6-mercapto-1,3,5-triazin-2(5H)-one (C3H4N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C3H4N4OS |
| Molecular Weight | 144.16 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.) | 1963 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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