3-Methyl-5-(methylthio)-4H-1,2,4-triazol-4-amine CAS 65901-92-0
| CAS No. | 65901-92-0 |
| Molecular Formula | C4H8N4S |
| Molecular Weight | 144.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Methyl-5-(methylthio)-4H-1,2,4-triazol-4-amine (CAS 65901-92-0), molecular formula C4H8N4S and molecular weight 144.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H8N4S, 3-Methyl-5-(methylthio)-4H-1,2,4-triazol-4-amine contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 144.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 3-Methyl-5-(methylthio)-4H-1,2,4-triazol-4-amine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4H8N4S |
| Molecular Weight | 144.20 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-Methyl-3-(methylthio)-1H-1,2,4-triazol-5-amine (CAS 51108-35-1)
- 4-Methyl-5-(methylthio)-4H-1,2,4-triazol-3-amine (CAS 88722-62-7)
- 2-(Methylthio)-5,6-dihydropyrimidin-4(1H)-one (CAS 100185-53-3)
- (5-(Methylthio)furan-2-yl)methanol (CAS 171738-68-4)
- (4-(Methylthio)furan-2-yl)methanol (CAS 639465-54-6)
- 5-Methyl-2-(methylthio)-1H-imidazol-4(5H)-one (CAS 95907-23-6)
- 1-MEthyl-2-(methylthio)-1,4,5,6-tetrahydropyrimidine (CAS 63896-08-2)
- 4-Methyl-2-(methylthio)thiophene (CAS 146041-17-0)
Recommended Standards
- 3-(Ethylthio)-4h-1,2,4-triazol-4-amine (CAS 869941-58-2)
- 4-Amino-5-ethyl-4H-[1,2,4]triazole-3-thiol (CAS 20939-16-6)
- 2-((1H-1,2,3-Triazol-5-yl)thio)ethanamine (CAS 915919-69-6)
- 4-Methyl-3-(methylamino)-1H-1,2,4-triazole-5(4H)-thione (CAS 21111-52-4)
- (S)-tert-Butyl (2-amino-3-hydroxypropyl)carbamate (CAS 80312-74-9)
- 6-(4-Aminophenyl)-2-methylpyridazin-3(2H)-one (CAS 360795-51-3)
- Cefalotin Sodium (CAS 58-71-9)
- 2-Bromo-3-bromomethyl-6-(trifluoromethyl)pyridine (CAS 888738-20-3)
- 2-(1-(4-Nitrobenzyl)-2-oxo-1,2-dihydroquinolin-4-yl)acetonitrile (CAS 61304-97-0)
- 1-(2-Chloro-6-methyl-4-sulfophenyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 125437-42-5)
- 1,2,4,5-tetrahydro-3-benzoxepin (CAS 5368-66-1)
- 3-(4-Cyano-3-fluorophenyl)-2-methyl-1-propene (CAS 951888-59-8)
- 2-Amino-1,4,5,6-tetrahydropyrimidine-5-carboxylic acid (CAS 158832-73-6)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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