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CAS NO:119-93-7
EC NO:204-358-0
3,3'-dimethylbenzidine appears as white to reddish crystals or crystalline powder or a light tan powder.
3,3'-Dimethylbenzidine is a member of biphenyls.
3,3'-Dimethylbenzidine is used as an intermediate in the production of dyes and pigments. Acute (short- term) exposure to high levels of 3,3'-dimethylbenzidine in humans may irritate the nose and throat. No information is available on the chronic (long-term), reproductive, developmental, or carcinogenic effects of 3,3'-dimethylbenzidine in humans.
3,3'-Dimethylbenzidine is used as an intermediate for the production of dyes and pigments.
Used as an intermediate in the production of dyes and pigments; used as a curing agent for polyurethane elastomers, coatings, and rigid foams.
3,3'-Dimethylbenzidine is an organic compound with the chemical formula (C6H4(CH3)NH2)2. Several isomers are known; the 3-tolidine derivative is also important commercially.
3,3'-Dimethylbenzidine is a colorless compound although commercial samples are often colored.
3,3'-Dimethylbenzidine is slightly soluble in water.
3,3'-Dimethylbenzidine forms salts with acids, such as the hydrochloride, which is commercially available.
3,3'-Dimethylbenzidine can be produced by a benzidine rearrangement from a hydrazine derivative derived from 2-nitrotoluene.
Uses
3,3'-Dimethylbenzidine is a commercial aromatic amine used mainly for dye production.
3,3'-Dimethylbenzidine is an intermediate for the production of soluble azo dyes and insoluble pigments used particularly in the textile, leather and paper industries.
3,3'-Dimethylbenzidine was widely used as a reagent or indicator in analytical, clinical and forensic chemistry, such as in the analytical determination of gold, or determination of the chlorine level in swimming pool water.
Properties:
Chemical formula: C14H16N2
Molar mass: 212.296 g·mol−1
Appearance: White to reddish crystals or powder
Density: 1.23 g/cm3
Melting point: 129 °C (264 °F; 402 K)
Boiling point: 300.5 °C (572.9 °F; 573.6 K)
Solubility in water: 1.3 g/L
3,3'-Dimethylbenzidine is a solid used in the production of azopigments, polyurethane elastomers and plastics for coating.
Applications
-3,3'-Dimethylbenzidine is used as an intermediate for free chlorine in water
-3,3'-Dimethylbenzidine is used as very sensitive reagent for gold
-3,3'-Dimethylbenzidine is used as an intermediate for dyes manufacturing
Use
For the dye industry, Analytical reagents, adsorption indicators and redox fingers
3,3'-Dimethylbenzidine is prepared by reducing o-nitrotoluene to 2,2 & prime with zinc powder (or ferrosilicon powder) in sodium hydroxide medium;-dimethyl symmetric diphenylhydrazine, and then rearranging it.
3,3'-Dimethylbenzidine is white to reddish leaf-like crystals, soluble in alcohol, ether, dilute acid, slightly soluble in water, and has an aniline-like smell.
3,3'-Dimethylbenzidine is mainly used as dye intermediate to produce tryptopol AS-G, direct dark green 2B-NB, direct dark brown B- NM, direct yellow brown ND3G, direct black NBN and various organic pigments.
3,3'-Dimethylbenzidine is used in the dye industry, analytical reagents, adsorption indicators and redox indicators
Photometric determination of gold, cerium, and free chlorine. Determination of nitrate, manganese, nitrite, chromium salt, copper salt, cobalt, mercury and cyanide ions in air. The analytical standard is a sensitive colorimetric photosensitivity for the determination of gold and free chlorine.
3,3'-Dimethylbenzidine is used as analytical reagent, adsorption indicator and redox indicator.
Formula: C14H16N2
Molecular mass: 212.3
Boiling point: 300°C
Melting point: 131-132°C
Density: 1.2 g/cm³
Solubility in water, g/100ml at 25°C: 0.13 (poor)
Flash point: 244°C
Auto-ignition temperature: 526°C
Octanol/water partition coefficient as log Pow: 2.34
3,3'-Dimethylbenzidine is an organic compound with the chemical formula (C6H4(CH3)NH2)2. Several isomers are known; the 3-tolidine derivative is also important commercially.
3,3'-Dimethylbenzidine is a colorless compound although commercial samples are often colored.
3,3'-Dimethylbenzidine is slightly soluble in water.
3,3'-Dimethylbenzidine forms salts with acids, such as the hydrochloride, which is commercially available.
3,3'-Dimethylbenzidine can be produced by a benzidine rearrangement from a hydrazine derivative derived from 2-nitrotoluene.
3,3'-Dimethylbenzidine is a commercial aromatic amine used mainly for dye production.
3,3'-Dimethylbenzidine is an intermediate for the production of soluble azo dyes and insoluble pigments used particularly in the textile, leather and paper industries.
3,3'-Dimethylbenzidine was widely used as a reagent or indicator in analytical, clinical and forensic chemistry, such as in the analytical determination of gold, or determination of the chlorine level in swimming pool water.
Sensitive colorimetric reagent for gold and for free chlorine in water.
3,3'-Dimethylbenzidine be used for preparation polyimide and epoxy resin material.
White to reddish crystals or crystalline powder or a light tan powder.
3,3'-Dimethylbenzidine is widely used in dye production.
3,3'-Dimethylbenzidine is particularly used in textile, leather and paper industries.
3,3'-Dimethylbenzidine can be used as an indicator in analytical, clinical and forensic chemistry.
3,3'-Dimethylbenzidine is utilized for the determination of gold and chlorine level in swimming pool water.
IUPAC names:
3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine
4,4'-bi-o-toluidina
4,4'-bi-o-toluidine
4-(4-amino-3-methylphenyl)-2-methylaniline
o-Tolidine
SYNONYMS:
4,4'-Diamino-3,3'-dimethylbiphenyl
4,4'-Diamino-3,3'-dimethyldiphenyl
3,3'-Dimethyl-4,4'-biphenyldiamine
3,3'-Dimethyl-4,4'-diphenyldiamine
3,3'-Dimethylbiphenyl-4,4'-diamine
3,3'-Dimethyldiphenyl-4,4'-diamine
3,3'-Tolidine
4,4'-Bi-o-toluidine
4,4'-Di-o-toluidine
Diaminoditolyl
Fast dark blue base R
C.I. azoic diazo component 113
3,3'-Dimethylbiphenyl-4,4'-diamine [Wiki]
3,3'-Dimethyl-4,4'-diaminobiphenyl
[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethyl- [ACD/Index Name]
119-93-7 [RN]
204-358-0 [EINECS]
2-Tolidine
3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine
3,3'-Dimethyl-4,4'-biphenyldiamin [German] [ACD/IUPAC Name]
3,3'-Dimethyl-4,4'-biphenyldiamine [ACD/IUPAC Name]
3,3'-Diméthyl-4,4'-biphényldiamine [French] [ACD/IUPAC Name]
3,3'-Dimethylbenzidine
4,4'-Bianisidine
DD1225000
MFCD00014773 [MDL number]
orthotolidine
o-tolidine
Tolidine [Wiki]
(1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethyl-
[119-93-7] [RN]
[4-(4-amino-3-methyl-phenyl)-2-methyl-phenyl]amine
C.I. 37230
C.I. Azoic Diazo Component 113
Orthotolidine
o-Tolidine
Azoic diazo component 113
DMB
Fast Dark Blue Base R
1'-biphenyl)-4,4'-diamine,3,3'-dimethyl-
(1'-Biphenyl)-4,4'-diamine-3,3'-dimethyl-
(1,1'-biphenyl)-4,4'-diamine-3,3'-dimethyl-
(1'-biphenyl]-4,4'-diamine,3,3'-dimethyl-
[2-Tolidin
2-Tolidina
2-Tolidine
3,3'-dimethyl-4,4'-biphenyldiamine
3,3'-dimethyl-[1,1'-biphenyl]-4,4'- diamine
3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine
3,3'-Dimethylbenzidine
3,3'-dimethyl-4,4'-diaminobiphenyl
