Description

1,2-Diamino-4,5-difluorobenzene (CAS No. 76179-40-3) is a high-purity fluorinated aromatic diamine with the molecular formula C₆H₆F₂N₂. This compound, also known as 4,5-difluorobenzene-1,2-diamine, is a versatile building block in organic synthesis and materials science. Its unique structure, featuring two amino groups and two fluorine atoms on a benzene ring, makes it valuable for designing advanced polymers, ligands, and pharmaceutical intermediates. The product is supplied as a crystalline solid with ≥98% purity (HPLC), ensuring consistency for research and industrial applications. Proper storage under inert conditions is recommended to maintain stability.

Properties

• CAS Number: 76179-40-3
• Complexity: 106
• IUPAC Name: 4,5-difluorobenzene-1,2-diamine
• InChI: InChI=1S/C6H6F2N2/c7-3-1-5(9)6(10)2-4(3)8/h1-2H,9-10H2
• InChI Key: PPWRHKISAQTCCG-UHFFFAOYSA-N
• Exact Mass: 144.04990452
• Molecular Formula: C6H6F2N2
• Molecular Weight: 144.12
• SMILES: C1=C(C(=CC(=C1F)F)N)N
• Topological: 52
• Monoisotopic Mass: 144.04990452
• Synonyms: 1,2-Diamino-4,5-difluorobenzene, 76179-40-3, 4,5-Difluoro-1,2-phenylenediamine, DTXSID10371576, DTXCID20322610, 616-301-0, 4,5-difluorobenzene-1,2-diamine, 4,5-Difluoro-o-phenylenediamine, MFCD00061131, 2-amino-4,5-difluorophenylamine, 4,5-Difluoro-1,2-phenylenediamine, 97%, 4,5-Difluoro-benzene-1,2-diamine, 1,2-Benzenediamine, 4,5-difluoro-, 4,5-difluoro-1,2-benzenediamine, 2-amino-4,5-difluoroaniline, SCHEMBL102552, 4,5-Difluoro-2-PhenylenediaMine, 4,5-difluoro-1,2-diaminobenzene, 4,5-difluoro1,2-phenylenediamine, 4,5-difluoro-1,2-phenylendiamine, 4,5-difluoro 1,2-phenylenediamine, 4,5-difluoro-ortho-phenylenediamine, CL9007, SBB069965, AKOS001393902, AC-9693, AS-5636, CCG-302533, CS-W007638, FD40751, 4,5-bis(fluoranyl)benzene-1,2-diamine, SY032989, DB-031893, D3729, 1,2-Diamino-4,5-difluorobenzene, AldrichCPR, EN300-27868, A838629, Z235347001, 4,5-Difluoro-1,2-benzenediamine; 4,5-Difluoro-o-phenylenediamine

Application

1,2-Diamino-4,5-difluorobenzene is widely used as a precursor for synthesizing fluorinated polybenzimidazoles and other high-performance polymers with enhanced thermal and chemical resistance. It serves as a key intermediate in the development of dyes, corrosion inhibitors, and ligands for transition-metal catalysis. Researchers also employ it to modify surfaces or create fluorinated heterocycles for agrochemical and pharmaceutical applications.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (95.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2A (100%)
• STOT SE 3 (95.2%)

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