3-(Methylthio)-1,2,4-triazine CAS 28735-21-9
| CAS No. | 28735-21-9 |
| Molecular Formula | C4H5N3S |
| Molecular Weight | 127.17 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.
3-(Methylthio)-1,2,4-triazine (CAS 28735-21-9), molecular formula C4H5N3S and molecular weight 127.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(Methylthio)-1,2,4-triazine (C4H5N3S) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 3-(Methylthio)-1,2,4-triazine 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.
Physical & Chemical Properties
| Molecular Formula | C4H5N3S |
| Molecular Weight | 127.17 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.) | 1965 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 3-(Methylthio)pyridazine (CAS 21948-71-0)
- 4-Methyl-2-(methylthio)furan (CAS 84735-62-6)
- 2-Methyl-5-(methylthio)furan (CAS 13678-59-6)
- 2-Methyl-3-(methylthio)furan (CAS 63012-97-5)
- 1-Methyl-4-(methylthio)-1H-pyrazole (CAS 1309388-78-0)
- 4-(Methylthio)pyridine (CAS 22581-72-2)
- 3-Methyl-5-(methylthio)-1H-1,2,4-triazole (CAS 34985-98-3)
- (Methylthio)acetyl chloride (CAS 35928-65-5)
Recommended Standards
- 1h-Imidazole-4-carbothioamide (CAS 95962-95-1)
- 4-Aminopyridazine-3-thiol (CAS 55271-45-9)
- 1H-imidazole-2-carbothioamide (CAS 438554-23-5)
- 5-Aminopyridazine-4-thiol (CAS 55271-41-5)
- 6-(Benzyloxy)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1356016-72-2)
- 3-Amino-2-[(furan-3-yl)methyl]propan-1-ol (CAS 1342004-08-3)
- p-[2-[(5-Chloro-2-methoxybenzoyl)amino]ethyl]benzenephosphonate (CAS 594854-55-4)
- Norepinephrine impurity 54 (CAS 1932110-67-2)
- 4-((4-(Tert-butyl)benzyl)thio)-7-chloro-2,3-dihydrobenzo[b][1,4]thiazepine (CAS 477855-79-1)
- 2-(3,4-Difluorophenyl)-2-(dimethylamino)acetic acid (CAS 1218126-33-0)
- 2-(5,6,7,8-Tetrahydronaphthalen-1-yl)acetic acid (CAS 776-50-1)
- [1-(3,4-dichlorobenzoyl)-4-fluoro-4-piperidinyl]methyl 4-fluorobenzenesulfonate (CAS 477857-55-9)
- 4-(3-Piperidinyl)-2-piperazinone dihydrochloride (CAS 1220037-88-6)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
Why CATO?
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