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4,4'-Dimethyltriphenylamine

Product Name
4,4'-Dimethyltriphenylamine
CAS No.
20440-95-3
Chemical Name
4,4'-Dimethyltriphenylamine
Synonyms
DMTPA;4,4'-Dimethyltriphen;N,N-DI-P-TOLYLANILINE;PHENYL(DI-P-TOLYL)AMINE;n-phenyl di-p-tolylamine;4,4DimehtylTriphenylamine;4-Methyl-N-(4-methylphenyl;4,4'-Dimethyltriphenylamine;4,4'-Dimethyltriphenylamine;N-Phenyl di-p-tolylamine,97%
CBNumber
CB0686015
Molecular Formula
C20H19N
Formula Weight
273.37
MOL File
20440-95-3.mol
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4,4'-Dimethyltriphenylamine Property

Melting point:
112°C
Boiling point:
289.3 °C
Density 
1.079±0.06 g/cm3(Predicted)
storage temp. 
Sealed in dry,Room Temperature
form 
powder to crystal
pka
-2.19±0.50(Predicted)
color 
White to Orange to Green
CAS DataBase Reference
20440-95-3(CAS DataBase Reference)
EPA Substance Registry System
Benzenamine, 4-methyl-N-(4-methylphenyl)-N-phenyl- (20440-95-3)
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Safety

HS Code 
29214990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

TCI Chemical
Product number
D2347
Product name
4,4'-Dimethyltriphenylamine
Purity
>98.0%(GC)
Packaging
1g
Price
$21
Updated
2025/07/31
TCI Chemical
Product number
D2347
Product name
4,4'-Dimethyltriphenylamine
Purity
>98.0%(GC)
Packaging
5g
Price
$56
Updated
2025/07/31
TCI Chemical
Product number
D2347
Product name
4,4'-Dimethyltriphenylamine
Purity
>98.0%(GC)
Packaging
25g
Price
$173
Updated
2025/07/31
TRC
Product number
D462545
Product name
4,4''-Dimethyltriphenylamine
Packaging
500mg
Price
$65
Updated
2021/12/16
TRC
Product number
D462545
Product name
4,4''-Dimethyltriphenylamine
Packaging
100mg
Price
$45
Updated
2021/12/16
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4,4'-Dimethyltriphenylamine Chemical Properties,Usage,Production

Chemical Properties

White to yellow solid

Uses

4,4''-Dimethyltriphenylamine

Synthesis

108-86-1

620-93-9

20440-95-3

Bromobenzene (7.71 g, 49.1 mmol), 4,4'-dimethyldiphenylamine (9.78 g, 49.6 mmol), sodium tert-butoxide (5.70 g, 59.3 mmol), palladium acetate (110 mg, 0.490 mmol), tri-tert-butylphosphine (396 mg, 1.96 mmol), and o-xylene (110 mL) were added sequentially under nitrogen protection to a 200 mL three-neck flask equipped with a stirrer. 1.96 mmol) and o-xylene (110 mL). The reaction mixture was stirred at 120 °C for 20 hours. Upon completion of the reaction, 150 mL of pure water was added to the mixture to wash and separate the organic phase. Subsequently, the organic phase was washed with another 150 mL of pure water, followed by washing with saturated saline and separation. The resulting organic layer was concentrated under reduced pressure and the solvent was removed by distillation. The resulting residue was purified by silica gel column chromatography to give 12.9 g of the final white crystalline product 4,4'-dimethyltriphenylamine (96% yield, 99.1% purity).

Purification Methods

Crystallise the amine once from EtOAc, then twice from EtOH to give pale yellow needles [Marsden J Chem Soc 627 1937, Beilstein 12 III 2033.]

References

[1] Journal of the American Chemical Society, 2012, vol. 134, # 50, p. 20262 - 20265
[2] Patent: JP5966736, 2016, B2. Location in patent: Paragraph 0075; 0078
[3] Organic and Biomolecular Chemistry, 2009, vol. 7, # 19, p. 3922 - 3925
[4] Organic Letters, 2005, vol. 7, # 11, p. 2209 - 2211

4,4'-Dimethyltriphenylamine Preparation Products And Raw materials

Raw materials

Preparation Products

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4,4'-Dimethyltriphenylamine Suppliers

Americas 1 Canada 1 China 178 Europe 3 Germany 3 India 11 Japan 2 Ukraine 1 United Kingdom 8 United States 25 Global 233
TOKYO CHEMICAL INDUSTRY CO., LTD.
Tel
03-36680489
Fax
03-3668-0520
Email
Sales-JP@TCIchemicals.com
Country
Japan
ProdList
28387
Advantage
80
Wako Pure Chemical Industries, Ltd.
Tel
--
Fax
--
Email
labchem-tec@wako-chem.co.jp
Country
Japan
ProdList
6819
Advantage
80
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View Lastest Price from 4,4'-Dimethyltriphenylamine manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
4,4'-Dimethyltriphenylamine 20440-95-3
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 mt
Release date
2024-12-10
Shanghai UCHEM Inc.
Product
4,4'-Dimethyltriphenylamine 20440-95-3
Price
US $13.00-222.00/g
Min. Order
25g
Purity
0.98
Supply Ability
25kg
Release date
2023-11-29
Kindchem(Nanjing)Co.,Ltd
Product
4,4'-Dimethyltriphenylamine 20440-95-3
Price
US $0.00-0.00/G
Min. Order
10G
Purity
0.98
Supply Ability
500kg
Release date
2023-09-26

20440-95-3, 4,4'-DimethyltriphenylamineRelated Search:

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  • 4,4'-Dimethyltriphen
  • Bis(4-methylphenyl)phenylamine N,N-Di-p-tolylaniline Phenyl(di-p-tolyl)amine
  • 4-Methyl-N-phenyl-N-(p-tolyl)aniline
  • DMTPA
  • 4,4-dimethyl-N,N-diphenyl-1-cyclohexa-1,5-dienamine
  • 4,4''-DIMETHYLTRIPHENYLAMINE 98+%
  • 4-Methyl-N-(4-methylphenyl
  • BIS(4-METHYLPHENYL)PHENYLAMINE
  • N,N-DI-P-TOLYLANILINE
  • n-phenyl di-p-tolylamine
  • PHENYL(DI-P-TOLYL)AMINE
  • 4-methyl-n-(4-methylphenyl)-n-phenyl-benzenamin
  • N-phenyl-N-(p-tolyl)-p-toluidine
  • 4,4DimehtylTriphenylamine
  • 4,4'-Dimethyltriphenylamine&gt
  • 4,4-dimethyltrimethylaniline
  • 4,4'-Dimethyltriphenylamine
  • 4,4'-Dimethyltriphenylamine (DMTPA)
  • 4,4′-Dimethyltriphenylamine, CAS 20440-95-3
  • 4,4'-Dimethyltriphenylamine
  • 20440-95-3
  • 20940-95-3
  • Reagents for Conducting Polymer Research
  • Electroluminescence
  • Acid Anhydrides, etc. (Reagents for Conducting Polymer Research)
  • White Powder
  • Phenylamine Series
  • Triphenylamine series
  • Functional Materials
  • Reagents for Conducting Polymer Research
  • electronic
  • pharmacetical
  • Amines
  • Acid Anhydrides, etc. (Reagents for Conducting Polymer Research)
  • Electroluminescence