H5126

2-(4-Hydroxyphenylazo)benzoic acid

≥90% (HPLC)

• Synonym(s): 2-(4′-Hydroxybenzeneazo)benzoic acid, 4′-Hydroxyazobenzene-2-carboxylic acid, HABA, HBABA
• Linear Formula: HOC₆H₄N=NC₆H₄CO₂H
• CAS Number: 1634-82-8
• Molecular Weight: 242.23
• Beilstein: 1842696
• EC Number: 216-655-2
• MDL number: MFCD00002428
• UNSPSC Code: 12352100
• PubChem Substance ID: 57654257
• NACRES: NA.22

Properties

• Assay: ≥90% (HPLC)
• mp: 204-208 °C (lit.)
• solubility: ethanol: 20 mg/mL, clear to hazy, orange to very deep orange
• SMILES string: Oc1ccc(cc1)\N=N\c2ccccc2C(O)=O
• InChI: 1S/C13H10N2O3/c16-10-7-5-9(6-8-10)14-15-12-4-2-1-3-11(12)13(17)18/h1-8,16H,(H,17,18)/b15-14+
• InChI key: DWQOTEPNRWVUDA-CCEZHUSRSA-N

Description

Application

2-(4-Hydroxyphenylazo)benzoic acid may be used in the preparation of:

• 2-((4-(3,4-dicyanophenoxy)phenyl)diazenyl)benzoic acid
• 2,2′-((((4,5-dicyano-1,2-phenylene)bis(oxy))bis(4,1-phenylene))bis(diazene-2,1-diyl)) dibenzoic acid
• a multifunctional benzoxazine monomer

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves