N-(4-Chlorophenyl)-4-nitroaniline CAS 20983-67-9
| CAS No. | 20983-67-9 |
| Molecular Formula | C12H9ClN2O2 |
| Molecular Weight | 248.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-(4-Chlorophenyl)-4-nitroaniline (C12H9ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
N-(4-Chlorophenyl)-4-nitroaniline (CAS 20983-67-9) is a high-purity analytical reference standard with the molecular formula C12H9ClN2O2 and a molecular weight of 248.67 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.
CATO manufactures N-(4-Chlorophenyl)-4-nitroaniline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H9ClN2O2 |
| Molecular Weight | 248.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related N Standards
- Methyl 2-(2-chlorophenyl)pyrimidine-5-carboxylate (CAS 1263059-53-5)
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- Methyl 3-(4-chlorophenyl)pyrazine-2-carboxylate (CAS 1363382-34-6)
- (4-Chlorophenyl) N-pyridin-4-ylcarbamate (CAS 161122-76-5)
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Recommended Standards
- N-(3-(2-Chlorophenyl)isoxazol-5-yl)acrylamide (CAS 94937-51-6)
- N'-(6-Chloropyridazin-3-yl)benzohydrazide (CAS 7190-96-7)
- Methyl 4-chloro-2-phenylpyrimidine-5-carboxylate (CAS 887580-16-7)
- 5-chloro-2-nitro-N-phenylaniline (CAS 25781-92-4)
- Cyclopentyl(pyridin-3-yl)methanone (CAS 82465-75-6)
- 6-Bromo-5-(difluoromethyl)-4-hydroxypicolinic acid (CAS 1804652-86-5)
- (3-Chloro-4-ethoxy-5-methoxyphenyl)methanamine (CAS 938004-61-6)
- 2-HYdroxy-3-nitroquinoline oh-form, me ether (CAS 36255-31-9)
- 2-Formyl-6-methoxyisonicotinonitrile (CAS 1289010-79-2)
- 5-Phenyl-3-(trifluoromethyl)pyridin-2-amine (CAS 1186194-94-4)
- 6-Methanesulfonyl-1h-indole (CAS 467461-40-1)
- 4-Phenoxy-2-(pyridin-2-yl)-6-(trifluoromethyl)pyrimidine (CAS 338418-27-2)
- 3-Amino-4,4-difluorobutan-1-ol (CAS 1785430-93-4)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
Why CATO?
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