5-(4-Chlorophenyl)-1H-1,2,4-triazol-3-amine CAS 98554-00-8
| CAS No. | 98554-00-8 |
| Molecular Formula | C8H7ClN4 |
| Molecular Weight | 194.62 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.
5-(4-Chlorophenyl)-1H-1,2,4-triazol-3-amine (CAS 98554-00-8), molecular formula C8H7ClN4 and molecular weight 194.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H7ClN4, 5-(4-Chlorophenyl)-1H-1,2,4-triazol-3-amine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 194.62 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 | C8H7ClN4 |
| Molecular Weight | 194.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chlorophenyl Standards
- 1-(3-Chlorophenyl)-2,3-dihydro-1h-imidazol-2-one (CAS 109130-25-8)
- 5-(2-Chlorophenyl)-3-methyl-1,2,4-oxadiazole (CAS 1120271-16-0)
- 1-(2-Chlorophenyl)-1h-1,2,4-triazol-5-amine (CAS 1247575-06-9)
- 4-(2-Chlorophenyl)-1,3-oxazol-2-amine (CAS 1248965-63-0)
- 5-(4-Chlorophenyl)oxazol-2(3h)-imine (CAS 13576-51-7)
- 5-[(4-chlorophenyl)methyl]-2h-1,2,3,4-tetrazole (CAS 14064-61-0)
- 5-(3-Chlorophenyl)-1,2-oxazol-3-amine (CAS 1480388-66-6)
- 5-(3-Chlorophenyl)-4h-1,2,4-triazol-3-amine (CAS 168893-31-0)
Recommended Standards
- 5-(4-Chlorophenyl)-1,2-oxazol-3-amine (CAS 51791-16-3)
- 5-(4-Chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 59719-19-6)
- 5-(4-Chloro-3-methylphenyl)-2H-tetrazole (CAS 885278-43-3)
- 5-(4-Chlorophenyl)-3-methyl-1,2,4-oxadiazole (CAS 89804-65-9)
- 3-(3-Trifluoromethylphenyl)phenol (CAS 365426-92-2)
- [1-(2,4-dichlorophenyl)cyclohexyl]methanamine (CAS 944348-13-4)
- 2-(((Benzyloxy)carbonyl)amino)-2-cyclohexylacetic acid (CAS 93025-71-9)
- 2-(2-Phenyl-1h-benzo[d]imidazo[1,2-a]imidazol-1-yl)ethan-1-ol (CAS 36289-13-1)
- (R)-4-methoxy-3-(pyrrolidin-2-yl)benzoic acid (CAS 1213147-08-0)
- 3-Acetyl-5-fluorobenzaldehyde (CAS 1393540-25-4)
- (6,6-dimethyl-2,5-dihydropyran-3-yl)methanol (CAS 2306270-04-0)
- Dofetilide Impurity 3 (CAS 85176-37-0)
- 1-methyl-4-(naphthalene-1-carbonyl)-1H-pyrrole-2-carboxylic acid (CAS 70696-66-1)
- FLAG Epitope Peptide (CAS 98849-88-8)
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