5,7-dimethyl-2-(methylsulfanyl)-[1,2,4]triazolo[1,5-a]pyrimidine CAS 51646-19-6
| CAS No. | 51646-19-6 |
| Molecular Formula | C8H18N4S |
| Molecular Weight | 202.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 202.32 g/mol gives 5,7-dimethyl-2-(methylsulfanyl)-[1,2,4]triazolo[1,5-a]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,7-dimethyl-2-(methylsulfanyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 51646-19-6) is a high-purity analytical reference standard with the molecular formula C8H18N4S and a molecular weight of 202.32 g/mol.
The molecular framework of 5,7-dimethyl-2-(methylsulfanyl)-[1,2,4]triazolo[1,5-a]pyrimidine (C8H18N4S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H18N4S |
| Molecular Weight | 202.32 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) | 2.0 |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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- Bis[2-(methoxycarbonyl)phenyl]carbonate (CAS 82091-12-1)
- 1,3-Difluoro-2-((methylsulfonyl)methyl)benzene (CAS 886497-97-8)
- 3-Methyl-3-(5-methylthiophen-2-yl)butanoic acid (CAS 1508687-83-9)
- n-(1-(4-Methoxyphenyl)ethyl)-2-methylpropan-1-amine (CAS 1019629-00-5)
- Sitagliptin Impurity 54 (CAS 1608491-98-0（free base）)
- 4-(1-(2-Fluorobenzyl)-1H-benzo[d]imidazol-2-yl)-1-(4-fluorophenyl)pyrrolidin-2-one (CAS 883645-50-9)
- Insulin aspart (CAS 116094-23-6)
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