| CAS No. | 89180-08-5 |
| Molecular Formula | C5H13N3S |
| Molecular Weight | 147.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 147.24 g/mol gives 4-amino-6-methylpyrimidine-2-thiol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-amino-6-methylpyrimidine-2-thiol (CAS 89180-08-5) is a high-purity analytical reference standard with the molecular formula C5H13N3S and a molecular weight of 147.24 g/mol.
The molecular framework of 4-amino-6-methylpyrimidine-2-thiol (C5H13N3S) is characterized by 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. 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.
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.
| Molecular Formula | C5H13N3S |
| Molecular Weight | 147.24 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) | 1.0 |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |