3-Amino-N-ethyl-1H-1,2,4-triazole-5-carboxamide CAS 199291-96-8
| CAS No. | 199291-96-8 |
| Molecular Formula | C5H9N5O |
| Molecular Weight | 155.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 155.16 g/mol gives 3-Amino-N-ethyl-1H-1,2,4-triazole-5-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Amino-N-ethyl-1H-1,2,4-triazole-5-carboxamide (CAS 199291-96-8), molecular formula C5H9N5O and molecular weight 155.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Amino-N-ethyl-1H-1,2,4-triazole-5-carboxamide (C5H9N5O) is characterized by an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 3-Amino-N-ethyl-1H-1,2,4-triazole-5-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 2013 |
| Nitrogen Atoms | 5 |
Related Amino Standards
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- 4-Amino-1-methyl-6-(methylamino)-1,3,5-triazin-2(1H)-one (CAS 127480-39-1)
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Recommended Standards
- 3,5-Diamino-1-methyl-1H-pyrazole-4-carboxamide (CAS 65889-65-8)
- 4,5,6-Triamino-1-methylpyrimidin-2(1H)-one (CAS 45864-27-5)
- 3,4-Diamino-6-ethyl-1,2,4-triazin-5(4H)-one (CAS 763908-37-8)
- 4,6-Bis(methylamino)-1,3,5-triazin-2(5H)-one (CAS 55702-52-8)
- (1-(4-(Trifluoromethyl)pyrimidin-2-yl)piperidin-3-yl)methanol (CAS 916791-20-3)
- 5-(2-Fluorophenyl)-4-(2-methylpropyl)-4H-1,2,4-triazole-3-thiol (CAS 694472-66-7)
- (S)-2-(Trifluoromethyl)azetidine (CAS 1221266-25-6)
- (R)-2-(4-chloro-3-(difluoromethyl)-2-fluorophenyl)pyrrolidine (CAS 1447108-01-1)
- (R)-2-amino-3-(2,3-difluorophenyl)propanoic acid (CAS 266360-59-2)
- 3-Cyclobutyl-4-phenyl-1H-pyrazolo[3,4-b]pyridin-6(2H)-one (CAS 820233-58-7)
- N-(4-methoxyphenyl)-2-(3,4,5-trimethoxybenzoyl)hydrazine-1-carbothioamide (CAS 70452-42-5)
- (E)-3-(4-Fluorophenyl)-2-Propen-1-ol (CAS 124980-95-6)
- 2-(2,4-Difluorobenzoyl)-6-methylpyridine (CAS 1187170-55-3)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
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