1-(3-Methyl-5-thioxo-2,5-dihydro-1H-1,2,4-triazol-1-yl)ethanone CAS 385381-78-2
| CAS No. | 385381-78-2 |
| Molecular Formula | C5H7N3OS |
| Molecular Weight | 157.19 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.
1-(3-Methyl-5-thioxo-2,5-dihydro-1H-1,2,4-triazol-1-yl)ethanone (CAS 385381-78-2), molecular formula C5H7N3OS and molecular weight 157.19 g/mol, is a CATO reference standard with documented purity and traceability.
1-(3-Methyl-5-thioxo-2,5-dihydro-1H-1,2,4-triazol-1-yl)ethanone (C5H7N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 1-(3-Methyl-5-thioxo-2,5-dihydro-1H-1,2,4-triazol-1-yl)ethanone 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 | C5H7N3OS |
| Molecular Weight | 157.19 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.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-(3-Methyl-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)ethanone (CAS 149747-26-2)
- 2-(3-Thioxo-3H-1,2,4-triazol-5-yl)acetic acid (CAS 65926-79-6)
- 6-Thioxo-5,7-diazaspiro[3.4]octan-8-one (CAS 1556929-79-3)
- 1-(3-Methyl-5-thioxo-4,5-dihydro-1H-pyrazol-4-yl)ethanone (CAS 211988-12-4)
- 3-Ethyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one (CAS 50680-83-6)
- 2-(5-Thioxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)acetamide (CAS 522644-59-3)
- 3-Methyl-2-thioxo-2,3-dihydro-1H-imidazole-4-carboxylic acid (CAS 64038-57-9)
- 4-Methyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 61320-82-9)
Recommended Standards
- (Z)-3-Methyl-4-((methylthio)methylene)isoxazol-5(4H)-one (CAS 61861-34-5)
- 1-(5-(Methylthio)-1H-1,2,4-triazol-1-yl)ethanone (CAS 63236-93-1)
- (S)-2-Amino-2-(thiophen-2-yl)acetic acid (CAS 43189-45-3)
- 1-(5-Amino-1,2,4-thiadiazol-3-yl)propan-2-one (CAS 912770-70-8)
- (SP-4-2)-Platinum(1+), diammineChloro(pyridine)-, Chloride (1:1) (CAS 106343-54-8)
- N-(2-Hydroxy-1,1-dimethylethyl)-2-methyl-3-nitrobenzamide (CAS 122733-31-7)
- Ethyl 2-amino-2-methyl-3-(3-methyl-1h-pyrazol-1-yl)propanoate (CAS 1344324-33-9)
- 1,3-dimethyl-1H,4H,5H,6H-pyrazolo[3,4-b][1,4]thiazine (CAS 1354952-12-7)
- Methyl 5-(4-Cyanophenyl)isoxazole-3-carboxylate (CAS 1375064-41-7)
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- 3-Amino-3-(4-fluorophenyl)-2,2-dimethylpropan-1-ol (CAS 1278662-42-2)
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