5-(2,2-Dimethoxyethyl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione CAS 240799-71-7
| CAS No. | 240799-71-7 |
| Molecular Formula | C7H13N3O2S |
| Molecular Weight | 203.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(2,2-Dimethoxyethyl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 240799-71-7) is a high-purity analytical reference standard with the molecular formula C7H13N3O2S and a molecular weight of 203.26 g/mol.
5-(2,2-Dimethoxyethyl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (C7H13N3O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C7H13N3O2S |
| Molecular Weight | 203.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dimethoxyethyl Standards
- 2-[(2,2-Dimethoxyethyl)Thio]-1,1,1-Trifluoroethane (CAS 84455-36-7)
- 3-(2,2-Dimethoxyethyl)-2-sulfanylideneimidazolidin-4-one (CAS 477889-52-4)
- 3-(2,2-Dimethoxyethyl)-4-nitroisoxazole (CAS 87149-76-6)
- ethyl [(2,2-dimethoxyethyl)carbamoyl]formate (CAS 58108-40-0)
- N-(2,2-Dimethoxyethyl)-N-methyl-2-nitroethanimidamide (CAS 338416-93-6)
- Methyl 3-[(2,2-dimethoxyethyl)amino]butanoate (CAS 116544-11-7)
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Recommended Standards
- 4-Methyl-2-phenylthiazole-5-carbaldehyde (CAS 55327-23-6)
- 5-[(1e)-2-phenylethenyl]-4h-1,2,4-triazole-3-thiol (CAS 218438-53-0)
- 4-ethylsulfonylpiperazine-2-carbonitrile (CAS 2306276-93-5)
- 6-(Dimethylamino)benzo[d]thiazole-2-carbonitrile (CAS 934270-87-8)
- Ethyl 4-((2-(4-chlorophenoxy)benzylidene)amino)benzoate (CAS 477862-33-2)
- (2-Bromophenyl)(isoquinolin-4-yl)methanone (CAS 1187171-63-6)
- 1-Benzyl-1H-pyrazolo[4,3-c]pyridine (CAS 41373-11-9)
- 7-Methylbenzo[b]thiophene-2-carboxylic acid (CAS 1505-61-9)
- (5-Bromo-2-methyl-3-(trifluoromethyl)phenyl)methanol (CAS 1266728-52-2)
- 2,5-Dimethyl-1-(2-{3,5,7-trimethylpyrazolo[1,5-a]pyrimidin-2-yl}thiophen-3-yl)-1H-pyrrole (CAS 677749-57-4)
- 3-(2,4-Dichlorobenzoyl)pyridine (CAS 62247-01-2)
- Quaternium-73 (CAS 15763-48-1)
- 3-methylmorpholine-2,5-dione (CAS 87823-49-2)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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