1-Ethyl-1H-1,2,4-triazole-5-carbohydrazide CAS 106535-39-1
| CAS No. | 106535-39-1 |
| Molecular Formula | C5H9N5O |
| Molecular Weight | 155.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Ethyl-1H-1,2,4-triazole-5-carbohydrazide.
1-Ethyl-1H-1,2,4-triazole-5-carbohydrazide (CAS 106535-39-1) is a high-purity analytical reference standard with the molecular formula C5H9N5O and a molecular weight of 155.16 g/mol.
Based on its molecular formula C5H9N5O, 1-Ethyl-1H-1,2,4-triazole-5-carbohydrazide contains an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 155.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 1-Ethyl-1H-1,2,4-triazole-5-carbohydrazide 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 | C5H9N5O |
| Molecular Weight | 155.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1987 |
| Nitrogen Atoms | 5 |
Recommended Standards
- 1,6-Naphthyridine-8-carbonitrile (CAS 1023813-61-7)
- tert-Butyl(2,2,2-trifluoroethyl)amine (CAS 1092294-10-4)
- n'-Hydroxy-3-(1h-1,2,4-triazol-1-yl)propanimidamide (CAS 1016815-34-1)
- 1,5-Naphthyridine-4-carbonitrile (CAS 1142927-38-5)
- {4-Fluoro-1H-pyrrolo[2,3-b]pyridin-5-yl}boronic acid (CAS 1626336-01-3)
- Trifluoro-methanesulfonic acid dimethylphenylsilyl ester (CAS 99542-59-3)
- N-(4-(4-(Benzo[d][1,3]dioxol-5-yl)-3-(6-methylpyridin-2-yl)-1H-pyrazol-1-yl)cyclohexyl)methanesulfonamide (CAS 746667-81-2)
- 5-Methyl-2-(pyrrolidin-1-yl)benzoic acid (CAS 689142-42-5)
- 4-Bromo-1-(3,5-dimethylphenyl)-3-methyl-1h-pyrazol-5-amine (CAS 956197-87-8)
- n-(2-Methylbenzyl)thieno[2,3-d]pyrimidin-4-amine (CAS 923901-53-5)
- tert-Butyl 6-piperazin-1-ypyridine-2-carboxylate (CAS 1053656-96-4)
- 4-(Methylthio)benzo[d]oxazol-2-amine (CAS 1804498-10-9)
- 2-Chloro-4-ethoxybenzenesulfonyl chloride (CAS 1016729-08-0)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
Why CATO?
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