Description

3,3′-Dihydroxybenzidine (CAS No. 2373-98-0) is a high-purity aromatic diamine with the molecular formula C₁₂H₁₂N₂O₂. This compound, also known by its IUPAC name 2-amino-5-(4-amino-3-hydroxyphenyl)phenol, is a valuable intermediate in organic synthesis and material science. It features two hydroxyl and two amino functional groups, making it highly reactive for polymerization, crosslinking, and coordination chemistry applications. Our product is rigorously tested for purity (>98%) and consistency, ensuring optimal performance in sensitive research and industrial processes. Supplied as a fine crystalline powder with minimal impurities, it is ideal for use in dye synthesis, polymer chemistry, and as a chelating agent.

Properties

• CAS Number: 2373-98-0
• Complexity: 213
• IUPAC Name: 2-amino-5-(4-amino-3-hydroxy-phenyl)phenol
• InChI: InChI=1S/C12H12N2O2/c13-9-3-1-7(5-11(9)15)8-2-4-10(14)12(16)6-8/h1-6,15-16H,13-14H2
• InChI Key: ZGDMDBHLKNQPSD-UHFFFAOYSA-N
• Exact Mass: 216.089877630
• Molecular Formula: C12H12N2O2
• Molecular Weight: 216.24
• SMILES: C1=CC(=C(C=C1C2=CC(=C(C=C2)N)O)O)N
• Topological: 92.5
• Monoisotopic Mass: 216.089877630
• Physical Description: 3,3′-dihydroxybenzidine appears as colorless crystals.
• Melting Point: 320 °F
• Synonyms: 3,3′-DIHYDROXYBENZIDINE, 2373-98-0, 4,4′-Diamino-3,3′-biphenyldiol, 3,3′-Dioxybenzidine, 3,3-Dihydroxybenzidine, 3,3′-Dihydroxy-4,4′-diaminobiphenyl, 4,4′-diaminobiphenyl-3,3′-diol, 3,3′-Dwuoksybenzydyna, Benzidine, 3,3′-dihydroxy-, HSDB 4051, m,m’-Biphenol, 6,6′-diamino-, 3,3′-Biphenyldiol, 4,4′-diamino-, CCRIS 9225, 3,3′-Dwuoksybenzydyna [Polish], OJ61P3RD7H, (1,1′-Biphenyl)-3,3′-diol, 4,4′-diamino-, BRN 2725972, [1,1′-Biphenyl]-3,3′-diol, 4,4′-diamino-, (1,1′-Biphenyl)-4,4′-diamine, 3,3′-dihydroxy-, DTXSID5025073, 3-13-00-02309 (Beilstein Handbook Reference), DIHYDROXYBENZIDINE, 3,3′-, 3,3′-DIHYDROXYBENZIDINE [HSDB], 3,3′-DWUOKSYBENZYDYNA (POLISH), [1,1′-BIPHENYL]-4,4′-DIAMINE, 3,3′-DIHYDROXY-, 3,3’Dioxybenzidine, 3,3’Dwuoksybenzydyna, Benzidine, 3,3’dihydroxy, m,m’Biphenol, 6,6’diamino, 4,4’Diamino3,3’biphenyldiol, DTXCID805073, 3,3’Biphenyldiol, 4,4’diamino, 3,3’Dihydroxy4,4’diaminobiphenyl, 6,6′-DIAMINO-M,M’-BIPHENOL, (1,1’Biphenyl)3,3’diol, 4,4’diamino, (1,1’Biphenyl)4,4’diamine, 3,3’dihydroxy, 4,4′-DIAMINO-(1,1′-BI-PHENYL)-3,3′-DIOL, 679-800-2, 4,4′-Diamino-[1,1′-biphenyl]-3,3′-diol, 2-amino-5-(4-amino-3-hydroxyphenyl)phenol, 3,3′-Dihydroxy-4,4′-diamino-biphenyl, MFCD00039149, 3,3′-Dihydroxybenzidine (HAB), 4,4′-Diamino-3,3′-dihydroxybiphenyl, UNII-OJ61P3RD7H, Benzidine-3,3′-diol, YSWG019, CHEMBL85811, SCHEMBL105866, SCHEMBL8852690, ZGDMDBHLKNQPSD-UHFFFAOYSA-, AKOS015894243, 3,3′-dihydroxy-4,4′-diamino-bipheny, CS-W014847, FD62618, SB79389, NCGC00091520-01, AC-22310, AS-11477, SY052119, 4,4′-Diamino[1,1′-biphenyl]-3,3′-diol, D2312, NS00127178, D71200, 4,4′-Diamino[1,1′-biphenyl]-3,3′-diol #, 3,3 inverted exclamation mark -Dihydroxybenzidine, Q27285684, 4,4′-Diamino[1,1′-biphenyl]-3,3′-diol, AldrichCPR, Benzidine-3,3′-diol;4,4′-Diamino-3,3′-dihydroxybiphenyl, InChI=1/C12H12N2O2/c13-9-3-1-7(5-11(9)15)8-2-4-10(14)12(16)6-8/h1-6,15-16H,13-14H2

Application

3,3′-Dihydroxybenzidine is widely used as a precursor in the synthesis of azo dyes and pigments, offering excellent chromophoric properties. It serves as a crosslinking agent in epoxy and polyurethane resins, enhancing thermal and mechanical stability. Researchers also utilize it as a ligand in coordination chemistry for metal-organic frameworks (MOFs) and catalysis. Its bifunctional reactivity makes it valuable in the development of conductive polymers and advanced materials.

Safety and Hazards

GHS Hazard Statements

• H350 (95.2%): May cause cancer [Danger Carcinogenicity]

Precautionary Statements

• P203, P280, P318, P405, and P501

Hazard Classes and Categories

• Carc. 1B (95.2%)

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