3-(4-Nitrophenyl)-1h-1,2,4-triazol-5-amine CAS 59301-21-2
| CAS No. | 59301-21-2 |
| Molecular Formula | C8H7N5O2 |
| Molecular Weight | 205.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 205.17 g/mol gives 3-(4-Nitrophenyl)-1h-1,2,4-triazol-5-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(4-Nitrophenyl)-1h-1,2,4-triazol-5-amine (CAS 59301-21-2), molecular formula C8H7N5O2 and molecular weight 205.17 g/mol, is a CATO reference standard with documented purity and traceability.
3-(4-Nitrophenyl)-1h-1,2,4-triazol-5-amine (C8H7N5O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-(4-Nitrophenyl)-1h-1,2,4-triazol-5-amine 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 | C8H7N5O2 |
| Molecular Weight | 205.17 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 5 |
Related Nitrophenyl Standards
- 2-(2-Methyl-3-nitrophenyl)-1,3,4-oxadiazole (CAS 1092345-76-0)
- 2-(3-methyl-4-nitrophenyl)-1,3,4-oxadiazole (CAS 1118786-96-1)
- 5-(2-Methyl-5-nitrophenyl)-2H-tetrazole (CAS 1203801-06-2)
- 4-(2-Nitrophenyl)oxazol-2-amine (CAS 1248008-00-5)
- 5-[(4-nitrophenyl)methyl]-1H-1,2,3,4-tetrazole (CAS 131090-44-3)
- 5-(4-Nitrophenyl)oxazol-2-amine (CAS 13576-56-2)
- 3-Methyl-5-(4-nitrophenyl)-1,2,4-oxadiazole (CAS 1455-82-9)
- 5-(3-Nitrophenyl)isoxazol-3-amine (CAS 1463481-61-9)
Recommended Standards
- 3-(3-Nitrophenyl)-1H-1,2,4-triazol-5-amine (CAS 59301-20-1)
- 3-(4-Nitrophenyl)-1H-pyrazol-5(4H)-one (CAS 54945-13-0)
- 3-(2-Nitrophenyl)isoxazol-5-amine (CAS 887591-67-5)
- 3-(5-amino-1H-1,2,3,4-tetrazol-1-yl)benzoic acid (CAS 1989671-38-6)
- 4-Morpholinophenylglyoxal hydrate (CAS 1049760-05-5)
- N-{5-[(dimethylamino)sulfonyl]-2-methylphenylhydrazinecarbothioamide (CAS 565168-01-6)
- (3S)-3-Methyl-4-(6-nitro-3-pyridyl)morpholine (CAS 2375165-93-6)
- 9-decen-2-one (CAS 35194-30-0)
- 5-(5-Fluoro-2-hydroxybenzoyl)-1-(3-methoxypropyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 743444-86-2)
- 2-Oxa-7-azaspiro[4.4]Nonan-8-one (CAS 1384427-76-2)
- 4,6-Diethoxypyrimidine-2(1H)-thione (CAS 155198-69-9)
- 6-(Difluoromethyl)picolinonitrile (CAS 1211527-29-5)
- 2-Chloro-N-(3-(3-methyl-1H-indol-1-yl)propyl)acetamide (CAS 61985-40-8)
- Exenatide (CAS 141758-74-9（free base）)
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