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m-Tolidine

m-Tolidine Structure
m-Tolidine structure
CAS No.
84-67-3
Chemical Name:
m-Tolidine
Synonyms
2,2'-diMethyl-4,4'-diaMinobiphenyl;2,2'-dimethyl-4,4'-diaminobiphenyl;2,2'-dimethyl[1,1'-biphenyl]-4,4'-diamine;2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine;NZ066;APB-144;M-TOLIDINE;2,2'-Tolidine;m-Tolidine;2,2’-dimethylbenzidine
CBNumber:
CB0320487
Molecular Formula:
C14H16N2
Molecular Weight:
212.29
MDL Number:
MFCD02269175
MOL File:
84-67-3.mol
MSDS File:
SDS
Last updated:2026-05-27 17:36:36
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m-Tolidine Properties

Melting point 105-106℃
Boiling point 344.4±37.0 °C(Predicted)
Density 1.106
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka 4.89±0.10(Predicted)
color White to Off-White
Stability Incompatible with oxidising agents
InChI InChI=1S/C14H16N2/c1-9-7-11(15)3-5-13(9)14-6-4-12(16)8-10(14)2/h3-8H,15-16H2,1-2H3
InChIKey QYIMZXITLDTULQ-UHFFFAOYSA-N
SMILES C1(C2=CC=C(N)C=C2C)=CC=C(N)C=C1C
CAS DataBase Reference 84-67-3
FDA UNII O23M27FP1T

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P305+P351+P338
Safety Statements  24/25
HS Code  29215900
NFPA 704
0
1 0

m-Tolidine price More Price(37)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical T3098 m-Tolidine >98.0%(GC)(T) 84-67-3 25g $76 2026-04-30 Buy
TRC TRC-D460113-500MG 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine 84-67-3 500mg $97 2026-06-03 Buy
TRC TRC-D460113-250MG 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine 84-67-3 250mg $72 2026-06-03 Buy
TRC TRC-D460113-2.5G 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine 84-67-3 2.5g $120 2026-06-03 Buy
Synthonix D39725 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine 97% 84-67-3 5g $12 2026-05-06 Buy
Product number Packaging Price Buy
T3098 25g $76 Buy
TRC-D460113-500MG 500mg $97 Buy
TRC-D460113-250MG 250mg $72 Buy
TRC-D460113-2.5G 2.5g $120 Buy
D39725 5g $12 Buy

m-Tolidine Chemical Properties,Uses,Production

Chemical Properties

m-Tolidine is pink particles and can form prisms when exposed to water. It is soluble in cold water, alcohol, and ether. In the presence of iron(III) chloride, m-Tolidine does not produce any color. It is tetrazotized with nitrite and acid and couples to form dyes.

Uses

2,2''-Dimethyl-[1,1''-biphenyl]-4,4''-diamine (cas# 84-67-3) is a useful reagent for manufacturing cured films and semiconductor devices.

Uses

M-TOLIDINE is used for preparation polyimide and epoxy resin material.

Preparation

M-Tolidine is made by the reduction of m-nitrotoluene with zinc dust and sodium hydroxide solution. The subsequent rearrangement is carried out with hydrochloric acid or sulfuric acid and gives rise to m-tolidine dihydrochloride or m-tolidine sulfate, which are isolated as salts. The free base is diffificult to isolate and is therefore not a commercial product.

Definition

M-Tolidine gives no color in the presence of iron(III) chloride. It is tetrazotized with nitrite and acid and couples to form dyes. M-Tolidine was used in the past for the production of azo dyes.

Chemical Reactivity

M-Tolidine gives no color in the presence of iron(III) chloride. It is tetrazotized with nitrite and acid and couples to form dyes.

m-Tolidine synthesis

99-08-1
5580-64-3
Synthesis of m-Tolidine from 3-Nitrotoluene

m-Tolidine Preparation Products And Raw materials

Raw materials

Phenylboronic acid pinacol ester Sodium hydroxide Hydrochloric acid Bis(pinacolato)diboron XPhos Pd G2
2-Iodo-5-nitrotoluene 3-Nitrotoluene Zinkamalgam

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Preparation Products

4,4'-Diiodo-2,2'-dimethylbiphenyl 2-Naphthalenesulfonic acid, 5,5'-[(2,2'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[6-hydroxy-, disodium salt 1,3-Naphthalenedisulfonic acid, 8-[[2,2'-dimethyl-4'-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxy-, disodium salt 2,7-Naphthalenedisulfonic acid, 3-[[3,3'-dimethyl-4'-[[3-oxo-1-[(phenylamino)carbonyl]propyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, disodium salt disodium 4-hydroxy-3-[[4'-[(2-hydroxynaphthyl)azo]-2,2'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate
C.I. Acid Orange 49 Acid Red 111 sodium 4-chloro-3-[4-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulphonate C.I. Acid black 70 Acid Yellow 86

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m-Tolidine Suppliers

Global( 244)Suppliers
Supplier Tel Email Country ProdList Advantage
CHINATECH(TIANJIN) CHEMICAL CO.,LTD. 18222205756 sales6@chinatechem.com China 100 58
Changzhou Sunlight Pharmaceutical Co., Ltd 519-83131668 15995063688 info@sunlightchem.com China 100 69
LinkChem Technology Co., Ltd. 58950110 13124863828 sales@linkchem.cn China 2993 58
Heynova (Shanghai) New Material Technology CO., Ltd 17821102608 zoe@heynovachem.com China 211 58
Hubei Chuanhe Chemical Co., Ltd 187-7130-7593 18672969259 3919539926@qq.com China 2624 58
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Junkai (Tianjin) Chemical Co., Ltd 13920864700 sales@junkaichem.com China 48 66
XiaoGan ShenYuan ChemPharm co,ltd 15527621225; 15527621225 1791901229@qq.com China 6746 52
Beijing Isomersyn Technology CO;LTD 010-82954736 13391601435 sales@isomersyn.com China 3294 57
Supplier Advantage
CHINATECH(TIANJIN) CHEMICAL CO.,LTD. 58
Changzhou Sunlight Pharmaceutical Co., Ltd 69
LinkChem Technology Co., Ltd. 58
Heynova (Shanghai) New Material Technology CO., Ltd 58
Hubei Chuanhe Chemical Co., Ltd 58
TCI (Shanghai) Development Co., Ltd. 81
Energy Chemical 61
Junkai (Tianjin) Chemical Co., Ltd 66
XiaoGan ShenYuan ChemPharm co,ltd 52
Beijing Isomersyn Technology CO;LTD 57

Related Questions

Ask a question
Q:What is the synthesis and use of m-Tolidine?Zora - Oct 13,2025
A:M-Tolidine is a white to Light yellow to Light orange powder to crystal, it is used for preparation polyimide and epoxy resin material. M-Tolidine is synthesized by the reduction of m-nitrotoluene with zinc dust and sodium hydroxide solution.

View Lastest Price from m-Tolidine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine pictures 2026-09-11 2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine
84-67-3
 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
m-tolidine pictures 2026-09-02 m-tolidine
84-67-3
 $1.00-158.00 1KG 99% Henan Fengda Chemical Co., Ltd
2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-Diamine(M-Tolidine) pictures 2026-08-18 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-Diamine(M-Tolidine)
84-67-3
 1KG 99.00% 1500KG/month Shanghai Daken Advanced Materials Co.,Ltd
  • m-tolidine pictures
  • m-tolidine
    84-67-3
  • $1.00-158.00
  • 99%
  • Henan Fengda Chemical Co., Ltd

m-Tolidine Spectrum

m-Tolidine(84-67-3)1HNMR

84-67-3(m-Tolidine)Related Search:

Acid Red 111 2,2'-Bis(trifluoromethyl)benzidine o-TOLIDINE DIHYDROCHLORIDE REAGENT (ACS),o-Tolidine2HCl,O-TOLIDINE HYDROCHLORIDE R. G.,O-TOLIDINE HYDROCHLORIDE,O-TOLIDINE DI HCL,O-TOLIDINE DIHYDROCHLORIDE DIACETOACET-O-TOLIDINE O-Tolidine
o-Tolidine diisocyanate 2,2'-DIMETHYLBIPHENYL (R)-2,2'-DIMETHYL-1,1'-BINAPHTHYL Benzidine O-TOLIDINE SULFONE
4,4'-Dimethylbiphenyl o-Toluidine hydrochloride (S)-2,2'-Dimethyl-1,1'-binaphthyl o-Tolidine-6,6''-disulfonic acid 4,4'-DIAMINOBIPHENYL-2,2'-DICARBOXYLIC ACID
O-TOLIDINE SULFONE O-TOLIDINE SOLUTION [FOR CHLORINE-TEST] o-Tolidine dihydrochoride

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4-(4-amino-2-methylphenyl)-3-methylbenzenamine 4,4'-Diamino-2,2'-dimethylbiphenyl APB-144 M-TOLIDINE 1’-Biphenyl]-4,4’-diamine,2,2’-dimethyl-[1 2,2’-dimethylbenzidine 2,2'-diMethyl-4,4'-diaMinobiphenyl(M-TB) 2,2'-diMethyl-4,4'-diaMinobiphenyl (M-tolidine m-Tolidine 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-Diamine(M-Tolidine) [1,1'-Biphenyl]-4,4'-diamine,2,2'-dimethyl- 2,2'-dimethyl-[1,1'-Biphenyl]-4,4'-diamine 2,2'-dimethyl benzidine 2,2'-Dimethyl-4,4'-biphenyldiamine 2,2'-Dimethyl-4,4'-diamino-1,1'-biphenyl 2,2'-Tolidine [4-(4-amino-2-methyl-phenyl)-3-methyl-phenyl]amine 4-(4-amino-2-methylphenyl)-3-methylaniline 4-(4-azanyl-2-methyl-phenyl)-3-methyl-aniline NZ066 2,2'-DIMETHYL-4,4'-DIAMINOBIPHENYL(M-TOLIDINE/M-TB) 2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine) CAS 2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine) 2,2'-dimethyl benzidine 2,2'-dimethy- 4,4'-diaminobiphenyl 4,4 '- Diamino-2,2' - Dimethyl-1,1 '- Biphenyl (m-TD) 4,4'-Diamino-2,2'-dimethyl-1,1'-biphenyl 2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine)CAS 2,2'-dimethyl[1,1'-biphenyl]-4,4'-diamine 2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine 2,2'-diMethyl-4,4'-diaMinobiphenyl 2,2'-dimethyl-4,4'-diaminobiphenyl 2,2'-Dimethyl-4,4'-diaminobiphenyl?-1-3 84-67-3 C6H3NH2CH32 Intermediates of Dyes and Pigments fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, functional materials 84-67-3