3,3'-Dihydroxybenzidine

3,3'-Dihydroxybenzidine Basic information
Product Name:3,3'-Dihydroxybenzidine
Synonyms:1’-biphenyl)-3,3’-diol,4,4’-diamino-(;1’-biphenyl)-4,4’-diamine,3,3’-dihydroxy-(;3,3'-DIHYDROXY-4,4'-DIAMINO-BIPHENYL;3,3'-DIHYDROXYBENZIDINE;Dihydroxybenzidine;2-amino-5-(4-amino-3-hydroxyphenyl)phenol;3,3-DIHYDROXYBENZIDINE 98+%;4,4'-Diaminobiphenyl-3,3'-diol
CAS:2373-98-0
MF:C12H12N2O2
MW:216.24
EINECS:679-800-2
Product Categories:Thiophen;Biphenyl & Diphenyl ether;Biphenyls (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;2373-98-0;intermediate
Mol File:2373-98-0.mol
3,3'-Dihydroxybenzidine Structure
3,3'-Dihydroxybenzidine Chemical Properties
Melting point 292 °C
Boiling point 356.65°C (rough estimate)
density 1.1710 (rough estimate)
refractive index 1.6660 (estimate)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
Water Solubility Practically insoluble in water
pka9.15±0.10(Predicted)
form powder to crystal
color White to Gray to Brown
CAS DataBase Reference2373-98-0(CAS DataBase Reference)
EPA Substance Registry System3,3-Dihydroxybenzidine (2373-98-0)
Safety Information
Hazard Codes T
Risk Statements 40-45-48-36/37/38
Safety Statements 22-53-45-36/37/39-26-6
RTECS DV4900000
HS Code 29222990
Hazardous Substances Data2373-98-0(Hazardous Substances Data)
MSDS Information
3,3'-Dihydroxybenzidine Usage And Synthesis
Chemical PropertiesA pale brown solid
Uses4,4'-diaminobiphenyl-3,3'-diol is used as organic intermediates.
Uses3,3''-Dihydroxybenzidine is used in preparation method of covalent organic framework-based metamaterial for optical device.
General DescriptionColorless crystals.
Air & Water ReactionsKeep well closed. Protect from air and light.
Reactivity Profile3,3'-Dihydroxybenzidine is an aminoalcohol. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Health HazardACUTE/CHRONIC HAZARDS: When heated to decomposition 3,3'-Dihydroxybenzidine emits toxic fumes.
Safety ProfileSuspected carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of Nox
3,3'-Dihydroxybenzidine Preparation Products And Raw materials
Raw materialsSodium bisulfite-->Sodium acetate trihydrate-->Hydriodic acid-->o-Dianisidine
Preparation ProductsC.I. Direct Blue 166
3,3'-Dimethoxybenzidine dihydrochloride 3,3',5,5'-Tetramethylbenzidine dihydrochloride Protocatechuic acid 2,2'-Benzidinedisulfonic acid Tetrazolium Blue Chloride 1-Hydroxyethylidene-1,1-diphosphonic acid DIHYDROXY BENZALDEHYDE Benzidine dihydrochloride Benzidine NBT DIFORMAZAN 1,3-Dihydroxyacetone 3,3'-Dihydroxybenzidine Pigment Yellow 12 Triclosan Chrysin 3,3'-DIHYDROXYDIPHENYLAMINE 4,4'-DIAMINODIPHENYL-3,3'-DIGLYCOLIC ACID P-ANISYL BLUE TETRAZOLIUM CHLORIDE

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