N,N,N',N'-TETRAMETHYL BENZIDINE

PRODUCT IDENTIFICATION
CAS NO. 366-29-0

N,N,N',N'-TETRAMETHYL BENZIDINE
EINECS NO. 206-676-5
FORMULA [(CH3)2NC6H4]2
MOL WT. 240.35

H.S. CODE

  

TOXICITY

  
SYNONYMS N,N,N'',N'-tetramethyl-(1,1'-Biphenyl)-4,4'-diamine;
4,4'-Bis(N,N-dimethylamino)biphenyl; N,N,N',N'-Tetramethyl-p,p'-benzidine; N,N,N',N'-tetrametilbencidina (Spanish); N,N,N',N'-tétraméthylbenzidine (French);
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white to brown powder

MELTING POINT

 193 - 195 C
BOILING POINT  
SPECIFIC GRAVITY  

SOLUBILITY IN WATER

  
pH

 
VISCOSITY  
AUTOIGNITION

 

REFRACTIVE INDEX

 
NFPA RATINGS Health: 1; Flammability: 1; Reactivity: 0
FLASH POINT

 
STABILITY Stable under normal conditions.

APPLICATIONS
Benzidine is the trival name for 4,4'-diaminobiphenyl which two hydrogen atoms on biphenyl molecules are replaced by amines at para position each. It is a white to slightly reddish crystalline powder turns dark on exposure to air and light; melting point of 128 C. This compound decomposes on heating and reacts violently with strong oxidants, particularly nitric acid. It is produced by the action of acids on diphenyldrazine. Benzidine can be classified as arylamine which one or more of the hydrogen atoms are replaced by aromatic groups such as homologues of aniline, p-aminobiphenyl, benzidine, and naphthylamine. Some arylamines are carcinogenic and the uses are restricted. Benzidne forms a blue precipitate with hemoglobin. Hemoglobin catalyzes the oxidation of benzidine to a polymer by hydrogen peroxide, which gives the blue color. This was the common screening test for occult blood. But the use is restricted due to cancer suspect. Benzidine is the starting material in the dye manufacturing. Numerous substituted group on the benzidine ring system as well as amine groups offer important roles to each characteristic colours directly and in preparing next target colorants. It is important in azo dyes production due to strong fix to cotton. It and its derivatives have active applications in the synthesis of dyes, pigments, paints, rubber compounding agents and wide range of organic chemicals.  Biphenyl structure of benzidine also provide the application in luminescence chemistry, spectrophotometric analysis, molecular chemistry, and as a stating material for organometallic-complexes. Benzidine molecules are used in dye production industry and certain other industrial fields. Benzidine molecules include:
Benzidine

CAS RN
2,2',5,5'-Tetrachlorobenzidine 15721-02-5
2,2'-Biphenyldiamine 1454-80-4
2,2'-Dichloro-5,5'-dimethoxybenzidine 5855-70-9
2,2'-Dichlorobenzidine 84-68-4
2,2'-Dichlorobenzidine dihydrochloride 5742-07-4
2,2'-Dichlorobenzidine sulfate 70146-07-5
2,2'-Dichloro-N,N'-bis(4-methoxybenzylidene)-4,4'-bianiline 3540-78-1
2,2'-Dimethyl(1,1'-biphenyl)-4,4'-diamine 84-67-3
2,2''-Dimethylbenzidine Hydrochloride 96196-27-9
2,2'-Dinitrobenzidine 5855-71-0
2-Aminobenzidine 2835-69-0
2-Methyl-N,N'-diacetylbenzidine 63991-70-8
2-Nitrobenzidine 2243-78-9
3,3',5,5'-Tetrachlorobenzidine 41687-08-5
3,3',5,5'-Tetrafluorobenzidine 42794-87-6
3,3',5,5'-Tetramethylbenzidine 54827-17-7
3,3',5,5'-Tetramethylbenzidine dihydrochloride hydrate 64285-73-0
3,3',5-Trichlorobenzidine 63390-12-5
3,3'-Benzidine dicarboxylic acid disodium salt 16993-94-5
3,3'-Benzidinedisulfonic acid 3365-90-0
3,3'-Diacetylbenzidine 98805-29-9
3,3'-Diaminobenzidine 91-95-2
3,3'-Diaminobenzidine tetrahydrochloride 7411-49-6
3,3'-Dibromobenzidine 34237-98-4
3,3'-Dicarbomethoxybenzidine 15403-45-9
3,3'-Dicarboxybenzidine 2130-56-5
3,3'-Dichlorobenzidine 91-94-1
3,3'-Dichlorobenzidine diethyl malonate hydrazone 103124-60-3
3,3'-Dichlorobenzidine dihydrochloride 612-83-9
3,3'-Dichlorobenzidine sulfate 64414-68-2
3,3'-Dichlorobenzidine sulphate 64969-34-2
3,3'-Dichlorobenzidine sulphate 74332-73-3
3,3'-Dichloro-N,N'-diacetylbenzidine 35958-51-1
3,3-Dichloro-N-acetylbenzidine 72732-23-1
3,3'-Difluorobenzidine 448-97-5
3,3'-Dihydroxybenzidine 2373-98-0
3,3'-Dimethoxybenzidine diethyl malonate hydrazone 103124-59-0
3,3'-Dimethoxybenzidine-4,4'-diisocyanate 91-93-0
3,3'-Dimethyl-N,N'-diacetylbenzidine 3546-11-0
3,3'-Dimethyl-N-acetylbenzidine 3546-13-2
3,3'-Dinitrobenzidine 6271-79-0
3,5-Dichlorobenzidine 63390-11-4
3,7-Dibenzothiophenediamine 5,5-dioxide 30508-11-3
3-Bromobenzidine 108238-11-5
3-Chlorobenzidine 63390-10-3
3-Fluorobenzidine 108543-17-5
3-Methoxybenzidine 3365-87-5
3-Nitrobenzidine 61841-39-2
4,4'-Diaminooctafluorobiphenyl 1038-66-0
Benzidine 92-87-5
Benzidine dihydrochloride 531-85-1
Benzidine hydrochloride 14414-68-7
Benzidine acetate 36341-27-2
Benzidine diethyl malonate hydrazone 103124-62-5
Benzidine N-glucuronide 85559-86-0
Benzidine orange 3520-72-7
Benzidine sulfate 531-86-2
Benzidine sulfone 6259-19-4
Benzidine sulphate 21136-70-9
Benzidine-2,2'-disulfonic acid 117-61-3
Benzidine-3-sulfonic acid
2051-89-0
Benzidine-4,4'-diimine 6050-16-4
Bis(diazo)benzidine 5957-03-9
C.I. Direct Black 38 1937-37-7
C.I. Direct Blue 6 2602-46-2
C.I. Direct brown 95 16071-86-6
C.I. Pigment Red 38 6358-87-8
C.I. Pigment yellow 12 6358-85-6
C.I. Pigment Yellow 13 5102-83-0
C.I. Pigment Yellow 14 5468-75-7
Diacetylacetotolidide 91-96-3
Diazobenzidine 3019-12-3
Dicarboxidine dihydrochloride 56455-90-4
Dicarboxydine 73758-56-2
Dichlorobenzidine 1331-47-1
Dimethoxybenzidine 1331-53-9
N-(3-Sulfopropyl)-3,3',5,5'-tetramethylbenzidine sodium salt 102062-36-2
N-(Deoxyguanosin-8-yl)benzidine 82682-91-5
N,N,N',N'-Tetraethylbenzidine 6860-63-5
N,N,N',N'-Tetrakis(4-aminophenyl)benzidine
3547-23-7
N,N,N',N'-Tetramethylbenzidine 366-29-0
N,N'-Diacetylbenzidine 613-35-4
N,N'-Dibenzylidene-2,2'-dichloro-4,4'-bianiline 10147-75-8
N,N'-Dimethylbenzidine 2810-74-4
N,N'-Dimethylbenzidine 2810-74-4
N,N'-Diphenylbenzidine 531-91-9
N,N'-Diphenylbenzidine 531-91-9
N-Acetylbenzidine 3366-61-8
N-Acetyldianisidine 83690-97-5
N-Hydroxy-N,N'-diacetylbenzidine 71609-22-8
N-Hydroxy-N'-acetylbenzidine 71609-23-9
N-Vanillylidenebenzidine 73688-67-2
o-Dianisidine 119-90-4
o-Dianisidine dihydrochloride 20325-40-0
o-Dianisidine hydrochloride 111984-09-9
o-Tolidine 119-93-7
o-Tolidine dihydrofluoride 41766-75-0
o-Tolidine dihydrochloride 612-82-8
o-Tolidine hydrochloride 7563-59-9
Tetramethylbenzidine bis-chloro-p-nitrobenzylate 24660-78-4
Tetramethylbenzidine bis-ethiodide 24660-74-0
Tetramethylbenzidine bis-iodobenzylate 24660-76-2
Tetramethylbenzidine bis-methylmethosulfate 24702-66-7
Tetramethylbenzidine 34314-06-2
Tetraphenylbenzidine 15546-43-7
SALES SPECIFICATION

APPEARANCE

 white to brown powder

CONTENT

97.0% min

MELTING POINT

192 - 196 C
TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS  
UN NO.  
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 26/36