4-Amino-5-methyl-4H-[1,2,4]triazole-3-thiol CAS 20939-15-5
| CAS No. | 20939-15-5 |
| Molecular Formula | C3H6N4S |
| Molecular Weight | 130.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 130.17 g/mol gives 4-Amino-5-methyl-4H-[1,2,4]triazole-3-thiol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Amino-5-methyl-4H-[1,2,4]triazole-3-thiol (CAS 20939-15-5) is a high-purity analytical reference standard with the molecular formula C3H6N4S and a molecular weight of 130.17 g/mol.
Owing to a nitrile group, sulfur-containing functionality, 4-Amino-5-methyl-4H-[1,2,4]triazole-3-thiol is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 130.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 4-Amino-5-methyl-4H-[1,2,4]triazole-3-thiol 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 | C3H6N4S |
| Molecular Weight | 130.17 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 2-amino-5-Thiazolemethanol (CAS 131184-73-1)
- 2-Amino-5-methylthiazol-4-ol (CAS 133833-95-1)
- 2-Amino-4-hydroxymethylthiazole (CAS 51307-43-8)
- 2-Amino-5,6-dihydro-4H-1,3-thiazin-4-one (CAS 24676-14-0)
- 2-Amino-5-methyl-1,3-thiazol-4(5H)-one (CAS 3805-14-9)
- 5-Amino-2,4-dihydro-4-methyl-3H-1,2,4-triazole-3-thione (CAS 66870-09-5)
- 5-Amino-2-methyl-1,2-dihydro-3H-1,2,4-triazole-3-thione (CAS 37634-01-8)
- N-Amino-D-proline (CAS 10139-05-6)
Recommended Standards
- 3-Methyl-2-thioxoimidazolidin-4-one (CAS 694-68-8)
- 5-((Methylthio)methyl)-2H-tetrazole (CAS 36855-39-7)
- 3,5-Dihydro-2-(methylthio)-4H-imidazol-4-one (CAS 90567-37-6)
- 3-(Methylsulfanyl)-4h-1,2,4-triazol-4-amine (CAS 65901-91-9)
- 5-(4-Methoxyphenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 33199-43-8)
- 3-Aminopropyl Methanethiosulfonate Hydrobromide (CAS 92953-13-4)
- 3-[(tert-butoxy)carbonyl]-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1798718-24-7)
- 1-(Azetidin-3-ylcarbonyl)-4-cyclobutyl-1,4-diazepane (CAS 1238877-60-5)
- 2-(Azetidin-1-yl)aniline (CAS 1314907-47-5)
- 3,3-Difluoro-5-nitroindoline (CAS 221665-98-1)
- tert-Butyl (4-acetyl-2-iodophenyl)carbamate (CAS 1884490-83-8)
- Bis(trimethylsilyl)selenide (CAS 4099-46-1)
- 3-methyl-4-phenylbut-3-en-2-amine hydrochloride (CAS 1807940-20-0)
- Insulin Degludec Impurity 5 (CAS CATO-C4X-21575)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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