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m-Tolidine

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

Product description	Number	Pack Size	Price
m-Tolidine >98.0%(GC)(T)	T3098	25g	$76
2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine	TRC-D460113-500MG	500mg	$97
2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine	TRC-D460113-250MG	250mg	$72
2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine	TRC-D460113-2.5G	2.5g	$120
2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine 97%	D39725	5g	$12
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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)

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(48)

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

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( 224)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
CHINATECH(TIANJIN) CHEMICAL CO.,LTD.	+86-86-18222270857 +8618222270857	sales5@chinatechem.com	China	100	58
Shanghai Daeyeon Chemicals Co., Ltd	021-64478606 +8615900664856	daeyeon001@vip.163.com	China	2062	58
Heynova (Shanghai) New Material Technology CO., Ltd	+86-17821102608	info@heynovachem.com	China	263	58
Chemport Science Technology Shanghai) Co., Ltd.	+undefined13816004845	chen@chemport-sh.com	China	189	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20122	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13901	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21587	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1803	55

Supplier	Advantage
CHINATECH(TIANJIN) CHEMICAL CO.,LTD.	58
Shanghai Daeyeon Chemicals Co., Ltd	58
Heynova (Shanghai) New Material Technology CO., Ltd	58
Chemport Science Technology Shanghai) Co., Ltd.	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
Shanghai Time Chemicals CO., Ltd.	55

Related Qustion

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

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-06-08	2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine 84-67-3		1KG	98%min	30tons/month	WUHAN FORTUNA CHEMICAL CO., LTD
2026-05-18	2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine) 84-67-3		1kg	≥99.5%	500MT	CHINATECH(TIANJIN) CHEMICAL CO.,LTD.
2025-09-25	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
84-67-3
$0.00
98%min
WUHAN FORTUNA CHEMICAL CO., LTD

2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine)
84-67-3
≥99.5%
CHINATECH(TIANJIN) CHEMICAL CO.,LTD.

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:

2,2'-Bis(trifluoromethyl)benzidine Acid Red 111 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 (S)-2,2'-DIMETHYL-1,1'-BINAPHTHYL 2,2'-DIMETHYLBIPHENYL (R)-2,2'-DIMETHYL-1,1'-BINAPHTHYL 4,4'-DIMETHYLBIPHENYL

Benzidine O-TOLUIDINE HYDROCHLORIDE O-TOLIDINE SULFONE 4,4'-DIAMINOBIPHENYL-2,2'-DICARBOXYLIC ACID o-Tolidine-6,6''-disulfonic 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-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 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

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m-Tolidine

m-Tolidine Properties

SAFETY

Risk and Safety Statements

m-Tolidine price More Price(48)

m-Tolidine Chemical Properties,Uses,Production

Chemical Properties

Uses

Uses

Preparation

Definition

Chemical Reactivity

m-Tolidine synthesis

m-Tolidine Preparation Products And Raw materials

Raw materials

Preparation Products

m-Tolidine Suppliers

Related Qustion

View Lastest Price from m-Tolidine manufacturers

m-Tolidine Spectrum

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