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N,N-Dimethyl-p-toluidine

N,N-Dimethyl-p-toluidine structure

CAS No.: 99-97-8

Chemical Name:: N,N-Dimethyl-p-toluidine

Synonyms: N,N,4-Trimethylaniline;Dimethyl-p-toluidine;dimethyltoluidine;n,n-dimethyl-p-toluidin;N,N-DIMETHYL-4-TOLUIDINE;N,N-Dimethyl-p-tolylamine;N,N-DIMETHYL-4-METHYLANILINE;4,N,N-TrimethyL;N,N,4-trimethyl-;DIMETHYLTOLYLAMINE

CBNumber:: CB4196682

Molecular Formula:: C9H13N

Molecular Weight:: 135.21

MDL Number:: MFCD00008316

MOL File:: 99-97-8.mol

MSDS File:: SDS

Last updated:2024-04-03 17:07:09

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N,N-Dimethyl-p-toluidine Properties

Melting point	-25°C
Boiling point	211 °C(lit.)
Density	0.937 g/mL at 25 °C(lit.)
vapor density	>1 (vs air)
vapor pressure	0.1 hPa (20 °C)
refractive index	n20/D 1.546(lit.)
Flash point	182 °F
storage temp.	Store below +30°C.
solubility	0.65g/l
form	Liquid
pka	pK1:7.24(+1) (25°C)
color	Clear yellow
explosive limit	7%
Water Solubility	Miscible with alcohol, ether and chloroform. Immiscible with water.
BRN	774409
Dielectric constant	3.3（20℃）
Stability	Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey	GYVGXEWAOAAJEU-UHFFFAOYSA-N
LogP	1.729-2.81 at 35℃
CAS DataBase Reference	99-97-8(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	S8XC5939VU
Proposition 65 List	N,N-Dimethyl-p-toluidine
IARC	2B (Vol. 115) 2018
EPA Substance Registry System	N,N,4-Trimethylaniline (99-97-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS06,GHS08

Signal word

Danger

Hazard statements

H301+H311-H330-H373-H412

Precautionary statements

P260-P273-P280-P302+P352+P312-P304+P340+P310-P314

Hazard Codes

Risk Statements

23/24/25-33-52/53

Safety Statements

28-36/37-45-61-28A-51-44-36-22-20/21

RIDADR

1708

WGK Germany

RTECS

XU5803000

8-10-23

Autoignition Temperature

425 °C

TSCA

Yes

HS Code

2921 43 00

HazardClass

6.1

PackingGroup

Toxicity

LD50 orally in Rabbit: 1650 mg/kg

NFPA 704

	2
3		0

N,N-Dimethyl-p-toluidine price More Price(29)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	8.22040	N,N-Dimethyl-p-toluidine for synthesis	99-97-8	5ML	$27.1	2024-03-01	Buy
Sigma-Aldrich	8.22040	N,N-Dimethyl-p-toluidine for synthesis	99-97-8	250ML	$68.2	2024-03-01	Buy
Sigma-Aldrich	8.22040	N,N-Dimethyl-p-toluidine for synthesis	99-97-8	1L	$139	2024-03-01	Buy
Sigma-Aldrich	41690	4,N,N-Trimethylaniline catalyst grade (for peroxide polymerization), ≥98.5% (GC)	99-97-8	100ml	$61.8	2024-03-01	Buy
Sigma-Aldrich	41690	4,N,N-Trimethylaniline catalyst grade (for peroxide polymerization), ≥98.5% (GC)	99-97-8	500ml	$142	2024-03-01	Buy

Product number	Packaging	Price	Buy
8.22040	5ML	$27.1	Buy
8.22040	250ML	$68.2	Buy
8.22040	1L	$139	Buy
41690	100ml	$61.8	Buy
41690	500ml	$142	Buy

N,N-Dimethyl-p-toluidine Chemical Properties,Uses,Production

Chemical Properties

light yellow liquid

Uses

N,N-Dimethyl-4-toluidine is an amine accelerator for the polymerization of e.g. dental methacrylic restorative materials

Uses

N,N-Dimethyl-p-toluidine is used as a polymerization catalyst for polyesters, acrylate and epoxy resins. It is also used as a hardener for dental cements and in adhesives. It serves as an intermediate for photographic chemicals, in industrial glues, in artificial fingernail preparations, colorants, pharmaceuticals. It reacts with vinyl ether in the presence of copper(II) chloride gives tetrahydroquinolines. Further, it is used to accelerate polymerization of ethyl methacrylate.

Synthesis Reference(s)

Synthetic Communications, 19, p. 3051, 1989 DOI: 10.1080/00397918908052700
Tetrahedron Letters, 8, p. 1849, 1967

General Description

A clear colorless liquid with an aromatic odor. Density 0.937 g / cm3 (Lancaster) and insoluble in water. Hence floats on water. Toxic by skin absorption and inhalation. Flash point 181°F. May release toxic vapors when burned.

Air & Water Reactions

Tends to darken upon exposure to air. Insoluble in water.

Reactivity Profile

N,N-Dimethyl-p-toluidine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Synthesis

N,N-Dimethyl-p-toluidine was prepared by reacting p-toluidine with methanol and POCl3 in autoclave heated up to 280° C for 3h.

Purification Methods

Reflux for 3hours with 2 molar equivalents of Ac2O, then fractionally distil it under reduced pressure. Alternatively, dry it over BaO, distil and store it over KOH. The picrate has m 128o (from EtOH). Methods described for N,N-dimethylaniline are applicable here. [Beilstein 12 H 902, 12 III 2026, 12 IV 1874.]

N,N-Dimethyl-p-toluidine synthesis

Synthesis of N,N-Dimethyl-p-toluidine from Carbon dioxide and N-METHYL-P-TOLUIDINE

N,N-Dimethyl-p-toluidine Preparation Products And Raw materials

Raw materials

Dimethyl sulfate

Preparation Products

Acid Violet 48 N-METHYL-P-TOLUIDINE N,4'-DIMETHYLFORMANILIDE 2-BROMO-N,N,4-TRIMETHYLANILINE

N,N-Dimethyl-p-toluidine Suppliers

Global( 422)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +86-18949832763	info@tnjchem.com	China	2989	55
Tianjin Zhongxin Chemtech Co., Ltd.	+86-022-66880623 +8618622897568	sales@tjzxchem.com	China	559	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12456	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5993	58
Shaanxi Franta Biotechnology Co., Ltd	+86-13082019107 +86-13082019107	admin@flanderff.com	China	229	58
CONTIDE BIOTECH CO.,LTD	+85253358525	xena@healthtide-api.com	China	499	58
Hebei Saisier Technology Co., LTD	+86-18400010335 +86-13102810335	admin@hbsaisier.cn	China	747	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55

Supplier	Advantage
Hefei TNJ Chemical Industry Co.,Ltd.	55
Tianjin Zhongxin Chemtech Co., Ltd.	58
Hebei Mojin Biotechnology Co., Ltd	58
Hebei Yanxi Chemical Co., Ltd.	58
Shaanxi Franta Biotechnology Co., Ltd	58
CONTIDE BIOTECH CO.,LTD	58
Hebei Saisier Technology Co., LTD	58
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55

View Lastest Price from N,N-Dimethyl-p-toluidine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-04-26	N,N-Dimethyl-4-methylaniline 99-97-8	US $0.00 / Kg/Drum	1KG	99%	2000mt/year	Jinan Finer Chemical Co., Ltd
2024-04-26	N,N-DIMETHYL-P-TOLUIDINE 99-97-8	US $10.00 / G	1G	99%	20	CONTIDE BIOTECH CO.,LTD
2024-04-12	N,N-DIMETHYL-P-TOLUIDINE 99-97-8	US $6.00 / KG	1KG	More than 99%	2000KG/Month	Hebei Saisier Technology Co., LTD

N,N-Dimethyl-4-methylaniline
99-97-8
US $0.00 / Kg/Drum
99%
Jinan Finer Chemical Co., Ltd

N,N-DIMETHYL-P-TOLUIDINE
99-97-8
US $10.00 / G
99%
CONTIDE BIOTECH CO.,LTD

N,N-DIMETHYL-P-TOLUIDINE
99-97-8
US $6.00 / KG
More than 99%
Hebei Saisier Technology Co., LTD

N,N-Dimethyl-p-toluidine Spectrum

N,N-DIMETHYL-P-TOLUIDINE(99-97-8)MS N,N-DIMETHYL-P-TOLUIDINE(99-97-8)¹HNMR N,N-DIMETHYL-P-TOLUIDINE(99-97-8)¹³CNMR N,N-DIMETHYL-P-TOLUIDINE(99-97-8)IR1 N,N-DIMETHYL-P-TOLUIDINE(99-97-8)IR2 N,N-DIMETHYL-P-TOLUIDINE(99-97-8)Raman

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N,N,4-TRIMETHYLBENZENAMINE N,N-DIMETHYL-PARA-TOLUIDINE N,N-DIMETHYL-P-TOLUIDINE Benzeneamine,N,N,4-trimethyl- dimethyl-4-toluidine Dimethyl-p-tolyl-amine Dimetil-p-toluidina n,n,4-trimethyl-benzenamin N,N-Dialkylarylamine(methylgroupinmetaposition) N,N-Dialkylarylamine 4,N,N-Trimethylaniline,4-Dimethylaminotoluene, N,N-Dimethyl-p-toluidine 4,N,N-Trimethylanili N,N-DiMethyl-p-toluidine, 99% 500GR N,N-Dimethyl-p-toluidine 4,N,N-Trimethylaniline catalyst grade (for peroxide polymerization), >=98.5% (GC) 4,N,N-Trimethylaniline purum, >=98.0% (GC) N,N,4-Trimethylaniline 4-Dimethylaminotoluene N,N- two Methylp-toluidine 4,N,N-TriMethylaniline 99% 4,N,N-TriMethylaniline, 98%+ N,N-Dimethyl-p-toluidine N,N-Dimethyl-p-toluidine for synthesis p-(dimethylamino)toluene p,N,N-trimethylaniline p-Methyl-N,N-dimethylaniline p-Toluidine, N,N-dimethyl- 4-DIMETHYLAMINOTOLUENE 4,N,N-TRIMETHYLANILINE Tetraphenylphthalicanhydride,98% Benzenamine, N,N,4-trimethyl- DIMETHYLPARA-TOLUIDINE 4-METHYL-N,N-DIMETHYLANILINE PARA-N,N-TRIMETHYLANILINE 4-Dimethylaminotoluene, N,N-Dimethyl-p-toluidine p-Tolyldimethylamine N,N-Dimethyl-p-toluidine,99% DIMETHYLTOLYLAMINE N,N-DIMETHYL-P-TOLUIDINE ISO 9001：2015 REACH N,N-Dimethyl-p-toluidine Purity 99% N,N,4-trimethyl- 4,N,N-TrimethyL N,N-Dimethyl-p-toluidine > N,N-DIMETHYL-4-METHYLANILINE N,N-DIMETHYL-4-TOLUIDINE Dimethyl-p-toluidine dimethyltoluidine N,N,4-Trimethylaniline n,n-dimethyl-p-toluidin N,N-Dimethyl-p-tolylamine Diethyl pyrocarbonate 1609-47-8 99-97-8 CH3C6H4NCH32 Building Blocks Amines C9 to C10 Organic Building Blocks Nitrogen Compounds Solvents