Ethyl 5-methyl-1-(4-nitrophenyl)-1H-1,2,4-triazole-3-carboxylate CAS 15966-46-8
| CAS No. | 15966-46-8 |
| Molecular Formula | C12H12N4O4 |
| Molecular Weight | 276.25 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.
CATO supplies Ethyl 5-methyl-1-(4-nitrophenyl)-1H-1,2,4-triazole-3-carboxylate (CAS 15966-46-8), a certified reference material (molecular formula C12H12N4O4, MW 276.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H12N4O4, Ethyl 5-methyl-1-(4-nitrophenyl)-1H-1,2,4-triazole-3-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C12H12N4O4 |
| Molecular Weight | 276.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 4 |
Recommended Standards
- Ethyl 5-methyl-1-(4-nitrophenyl)-1h-1,2,3-triazole-4-carboxylate (CAS 15922-66-4)
- Ethyl 5-amino-1-(2-nitrophenyl)-1H-pyrazole-4-carboxylate (CAS 16459-33-9)
- 4-Amino-N,N-dimethyl-3-((1,1,1-trifluoropropan-2-yl)oxy)benzamide (CAS 1509183-62-3)
- Ethyl 5-amino-1-(3-nitrophenyl)pyrazole-4-carboxylate (CAS 16459-34-0)
- 2-(Methylthio)phenyl carbonochloridate (CAS 935847-86-2)
- 8-fluoro-3-hydroxyquinoline-4-carboxylic acid (CAS 1516416-30-0)
- (4,5-dimethyl-4H-1,2,4-triazol-3-yl)(phenyl)methanamine (CAS 1250018-03-1)
- Methyl (1S,3R,4R,5S)-3-acetoxy-5-azido-4-hydroxycyclohexane-1-carboxylate (CAS 927881-61-6)
- (Butan-2-yl)[(2,4-dimethylphenyl)methyl]amine hydrochloride (CAS 1240578-41-9)
- Methyl 3-(imidazo[1,2-a]pyrimidin-2-yl)propanoate (CAS 1824097-15-5)
- Tris(2-methyl-1H-indol-3-yl)methane (CAS 602-04-0)
- Methyl 3,5-di-tert-butyl-2-hydroxybenzoate (CAS 15018-03-8)
- 3-(5-Bromothiophen-2-yl)isoxazole (CAS 175205-66-0)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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