ChemicalBook > CAS DataBase List > 3,3'-Dihydroxybenzidine

3,3'-Dihydroxybenzidine

Product Name
3,3'-Dihydroxybenzidine
CAS No.
2373-98-0
Chemical Name
3,3'-Dihydroxybenzidine
Synonyms
HAB;2-amino-5-(4-amino-3-hydroxyphenyl)phenol;p-HAB;Dihydroxybenzidine;3,3’-dioxybenzidine;BENZIDINE-3,3'-DIOL;3,3'-Dihydroxybenzid;3,3’-dwuoksybenzydyna;5,5'-Bi(2-aminophenol);3,3'-DIHYDROXYBENZIDINE
CBNumber
CB6437723
Molecular Formula
C12H12N2O2
Formula Weight
216.24
MOL File
2373-98-0.mol
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3,3'-Dihydroxybenzidine Property

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
form 
powder to crystal
pka
9.15±0.10(Predicted)
color 
White to Gray to Brown
CAS DataBase Reference
2373-98-0(CAS DataBase Reference)
EPA Substance Registry System
3,3-Dihydroxybenzidine (2373-98-0)
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Safety

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 Data
2373-98-0(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H351Suspected of causing cancer

H373May cause damage to organs through prolonged or repeated exposure

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
D2312
Product name
3,3'-Dihydroxybenzidine
Purity
>99.0%(T)
Packaging
5g
Price
$150
Updated
2024/03/01
TCI Chemical
Product number
D2312
Product name
3,3'-Dihydroxybenzidine
Purity
>99.0%(T)
Packaging
25g
Price
$593
Updated
2024/03/01
TRC
Product number
D679040
Product name
3,3''-Dihydroxybenzidine
Packaging
50mg
Price
$45
Updated
2021/12/16
SynQuest Laboratories
Product number
4656-1-19
Product name
3,3'-Dihydroxy-4,4'-diaminobiphenyl
Packaging
1g
Price
$23
Updated
2021/12/16
Apolloscientific
Product number
OR912142
Product name
4,4'-Diamino-[1,1'-biphenyl]-3,3'-diol
Purity
97%
Packaging
1g
Price
$28
Updated
2021/12/16
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3,3'-Dihydroxybenzidine Chemical Properties,Usage,Production

Description

3,3'-Dihydroxybenzidine is an organic synthesis intermediate used as a raw material for the synthesis of fire-resistant polymers (polyhydroxyamino acids).3,3'-Dihydroxybenzidine is also used in the preparation of hydroxyl-containing polyimides, all of which are synthesised to be soluble in NMP when heated. 3,3'-Dihydroxybenzidine is used in the synthesis of polyimides with hydroxyl groups. The glass transition temperature (Tg) of polyimides ranges from 336-360°C, independent of the structure of the tetracarboxylic dianhydride. The storage modulus of some polyimides does not decrease at elevated temperatures. All polyimides thermally transform into polybenzoxazole when heated to 500°C for 1 hour under vacuum.

Chemical Properties

A pale brown solid

Uses

4,4'-diaminobiphenyl-3,3'-diol is used as organic intermediates.

Uses

3,3''-Dihydroxybenzidine is used in preparation method of covalent organic framework-based metamaterial for optical device.

General Description

Colorless crystals.

Air & Water Reactions

Keep well closed. Protect from air and light.

Reactivity Profile

3,3'-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 Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition 3,3'-Dihydroxybenzidine emits toxic fumes.

Safety Profile

Suspected 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 materials

Sodium acetate trihydrate Sodium bisulfite o-Dianisidine Hydriodic acid

Preparation Products

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3,3'-Dihydroxybenzidine Suppliers

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View Lastest Price from 3,3'-Dihydroxybenzidine manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
3,3'-Dihydroxybenzidine 2373-98-0
Price
US $99.00-35.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-08
Hebei Yanxi Chemical Co., Ltd.
Product
3,3'-Dihydroxybenzidine 2373-98-0
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20 tons
Release date
2023-03-09
Hebei Mojin Biotechnology Co., Ltd
Product
3,3'-Dihydroxybenzidine 2373-98-0
Price
US $0.00/KG
Min. Order
1KG
Purity
99.1%
Supply Ability
50000KG/month
Release date
2024-10-22

2373-98-0, 3,3'-DihydroxybenzidineRelated Search:

3,3',5,5'-Tetramethylbenzidine dihydrochloride Chrysin Protocatechuic acid Butylated Hydroxytoluene Benzidine dihydrochloride Triclosan 2,2'-Benzidinedisulfonic acid 1,3-Dihydroxyacetone Benzidine 1-Hydroxyethylidene-1,1-diphosphonic acid Pigment Yellow 12 3,3'-DIHYDROXYDIPHENYLAMINE 3,3'-Dimethoxybenzidine dihydrochloride Tetrazolium Blue Chloride Nitrotetrazolium blue chloride Tetranitroblue tetrazolium chloride CHICAGO SKY BLUE 6B o-Dianisidine

  • 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
  • 3,3'-Dihydroxybiphenyl-4,4'-diamine
  • 4,4'-Diamino-(1,1'-biphenyl)-3,3'-diol
  • 5,5'-Bi(2-aminophenol)
  • 2-azanyl-5-(4-azanyl-3-hydroxy-phenyl)phenol
  • 3,3'-Dihydroxybenzid
  • 4,4'-DiaMino-3,3'-diphenol
  • Benzidine-3,3'-diol 4,4'-Diamino-3,3'-dihydroxybiphenyl
  • [1,1'-Biphenyl]-3,3'-diol,4,4'-diaMino-
  • 3,3'-Dihydroxybenzidine(p-HAB)
  • 4,4'-Diaobiphenyl-3,3'-Diol
  • 3,3’-dihydroxy-benzidin
  • 3,3’-dioxybenzidine
  • 3,3'-Dihydroxybenzidine in stock Factory
  • 3,3’-dwuoksybenzydyna
  • 3,3’-dwuoksybenzydyna(polish)
  • 4,4’-diamino-3’-biphenyldiol
  • 6,6’-diamino-m’-biphenol
  • HAB
  • BENZIDINE-3,3'-DIOL
  • 4,4'-DIAMINO-3,3'-BIPHENYLDIOL
  • 4,4'-DIAMINO-3,3'-DIHYDROXYBIPHENYL
  • 3,3'-Dihydroxybenzidine&gt
  • 3,3'-Dihydroxybenzidine ISO 9001：2015 REACH
  • p-HAB
  • 3,3'-Dihydroxybenzidine (HAB)
  • TIANFU-CHEM 3,3'-Dihydroxybenzidine
  • 3,3'-Biphenyldiol, 4,4'-Diamino
  • 3,3'-Dihydroxybenzidine
  • 4,4'-Diamino-[1,1'-biphenyl
  • 3,3'-Dihydroxybenzidine (HAB)
  • 4,4'-Diamino-[1,1'-biphenyl]-3,3'-diol
  • 3,3'-Dihydroxy-4,4'-diaminobiphenyl
  • 3,3'-Dihydroxybenzidine (p-HAB)
  • 2373-98-0
  • 2372-98-0
  • Reagent for High-Performance Polymer Research
  • Biphenyls (for High-Performance Polymer Research)
  • Thiophen
  • Biphenyl & Diphenyl ether
  • Biphenyls (for High-Performance Polymer Research)
  • Functional Materials
  • Reagent for High-Performance Polymer Research
  • 2373-98-0
  • intermediate