4-Nitrophenol

• CAT Number: R048975
• CAS Number: 100-02-7
• Molecular Formula: C6H5NO3
• Molecular Weight: 139.11
• Purity: ≥95%
• Synonyms: p-Nitrophenol; 1-Hydroxy-4-nitrobenzene; 4-Hydroxy-1-nitrobenzene; 4-Hydroxynitrobenzene; NSC 1317; Niphen; p-Hydroxynitrobenzene; p-Nitrophenol
• Storage: -20°C
• IUPAC Name: 4-nitrophenol
• InChI: InChI=1S/C6H5NO3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H
• InChIKey: BTJIUGUIPKRLHP-UHFFFAOYSA-N
• SMILES: C1=CC(=CC=C1[N+](=O)[O-])O

4-Nitrophenol(CAT: R048975) is an aromatic organic compound consisting of a phenol ring substituted with a nitro group at the para (4-) position. It appears as a pale yellow crystalline solid and is widely used as a precursor and intermediate in the synthesis of pharmaceuticals, dyes, pesticides, and fine chemicals. Due to its acidic hydroxyl group and electron-withdrawing nitro group, 4-nitrophenol participates readily in electrophilic substitution, nucleophilic reactions, and reduction processes (e.g., conversion to 4-aminophenol). It is also commonly used as a colorimetric substrate in enzyme assays.