3-(3-Mercapto-1H-1,2,4-triazol-5-yl)propanamide CAS 522644-34-4
| CAS No. | 522644-34-4 |
| Molecular Formula | C5H8N4OS |
| Molecular Weight | 172.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(3-Mercapto-1H-1,2,4-triazol-5-yl)propanamide (CAS 522644-34-4) is a high-purity analytical reference standard with the molecular formula C5H8N4OS and a molecular weight of 172.21 g/mol.
Structurally, 3-(3-Mercapto-1H-1,2,4-triazol-5-yl)propanamide (C5H8N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 172.21 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H8N4OS |
| Molecular Weight | 172.21 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.) | 1984 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Mercapto Standards
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- Ethyl 2-mercapto-1H-imidazole-4-carboxylate (CAS 64038-64-8)
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Recommended Standards
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- 4-Methoxy-6-(methylthio)-1,3,5-triazin-2-amine (CAS 30358-18-0)
- Methyl 2-chloro-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylate (CAS 1936287-50-1)
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- 3-Chloro-4-fluoropicolinaldehyde (CAS 1239352-00-1)
- 3,5-Dichloropyridine-4-boronic acid (CAS 1469931-06-3)
- (R)-Indobufen (CAS 131484-83-8)
- 1-(prop-2-yn-1-yl)-1H-1,3-benzodiazole hydrochloride (CAS 41472-79-1)
- 2-Chloro-3-nitropyridine 2-chloro-3-nitro-pyridine 2-chloro-3-nitropyridine 34515-82-7 2-chloro-3-nitro pyridine 3-nitro-2-chloropyridine 5470-18-8 (CAS 5470-18-8)
- 3-Methyl-4-thiocyanatobutan-2-one (CAS 100850-70-2)
- N5-(2,6-Difluorophenyl)-1,3-dimethyl-1H-pyrazole-4,5-diamine (CAS 1157037-76-7)
- Peptide Impurity 12 (CAS CATO-CPTD788812)
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