5-Amino-1-(2,4-dichlorophenyl)-3-methyl-1h-pyrazole-4-carbonitrile CAS 58791-83-6
| CAS No. | 58791-83-6 |
| Molecular Formula | C11H8Cl2N4 |
| Molecular Weight | 267.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-1-(2,4-dichlorophenyl)-3-methyl-1h-pyrazole-4-carbonitrile (C11H8Cl2N4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 5-Amino-1-(2,4-dichlorophenyl)-3-methyl-1h-pyrazole-4-carbonitrile (CAS 58791-83-6), a certified reference material (molecular formula C11H8Cl2N4, MW 267.11 g/mol) for analytical method development and quality control.
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 | C11H8Cl2N4 |
| Molecular Weight | 267.11 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Amino Standards
- 5-Amino-4-cyano-1-(2,6-dichlorophenyl)-3-methylpyrazole (CAS 1072944-85-4)
- 5-Amino-1-(2,3-dichlorophenyl)-3-methyl-1H-pyrazole-4-carbonitrile (CAS 76989-44-1)
- 5-Amino-1-(2,5-dichlorophenyl)-3-methyl-1h-pyrazole-4-carbonitrile (CAS 76982-29-1)
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- 1,2-Dichloro-3-difluoromethoxy-6-nitrobenzene (CAS 1803806-60-1)
- Sunitinib Impurity 9 (CAS 356068-98-9)
- tert-Butyl (1-(4-chlorophenyl)-2-hydroxyethyl)carbamate (CAS 147353-95-5)
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