1-(3-Nitrophenyl)-1h-1,2,3-triazole-4-carboxylic acid CAS 944905-90-2
| CAS No. | 944905-90-2 |
| Molecular Formula | C9H6N4O4 |
| Molecular Weight | 234.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-(3-Nitrophenyl)-1h-1,2,3-triazole-4-carboxylic acid (C9H6N4O4) is characterized by an amino-acid-derived structure, 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. 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).
1-(3-Nitrophenyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 944905-90-2) is a high-purity analytical reference standard with the molecular formula C9H6N4O4 and a molecular weight of 234.17 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H6N4O4 |
| Molecular Weight | 234.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1987 |
| Nitrogen Atoms | 4 |
Related Nitrophenyl Standards
- 3-(3-Nitrophenyl)isoxazole-5-carboxylic acid (CAS 1022083-09-5)
- 2-(2-Nitrophenyl)oxazole-4-carboxylic acid (CAS 1220040-17-4)
- 5-(2-Nitrophenyl)isoxazole-3-carboxylic Acid (CAS 1232028-11-3)
- 1-(2-Nitrophenyl)-1H-1,2,3-triazole-5-carboxylic acid (CAS 1266982-78-8)
- 2-(4-Nitrophenyl)oxazole-4-carboxylic acid (CAS 1457898-81-5)
- 1-(4-Nitrophenyl)-1H-1,2,3-triazole-5-carboxylic acid (CAS 15966-70-8)
- 1-(4-Nitrophenyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 4600-06-0)
- 3-(4-Nitrophenyl)isoxazole-5-carboxylic acid (CAS 899820-05-4)
Recommended Standards
- 1-(3,5-Dimethoxyphenyl)-2,2,2-trifluoroethan-1-one (CAS 929099-06-9)
- 1-(3,4-Dimethoxyphenyl)-2,2,2-trifluoroethanone (CAS 300374-83-8)
- 1-(5-Ethoxy-2-hydroxyphenyl)-2,2,2-trifluoroethan-1-one (CAS 730992-69-5)
- 1-(2-Methoxy-5-(trifluoromethoxy)phenyl)ethan-1-one (CAS 468074-92-2)
- Atglistatin (CAS 1469924-27-3)
- 3-(4-Chlorophenyl)-1-(2-fluorophenyl)propan-1-one (CAS 898788-23-3)
- [4-(4-nitrophenyl)-1h-imidazol-2-yl]methanol (CAS 1340189-83-4)
- 4-Methyl-6-(pyrrolidin-1-yl)pyridin-3-amine (CAS 850172-55-3)
- 2-Amino-3-hydroxy-3-(4-methoxyphenyl)propanoic acid (CAS 50897-30-8)
- Methyl 3-methoxy-2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 2096336-72-8)
- Ethyl 2-(5-ethyl-2-imino-1,3,4-thiadiazol-3(2H)-yl)acetate (CAS 737717-44-1)
- 1-Bromo-3-(chloromethyl)-2,4,5,6-tetrafluorobenzene (CAS 292621-52-4)
- (1R,4S,6S)-2-azabicyclo[2.2.1]Heptan-6-ol (CAS 143259-82-9)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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