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: 100mg
Price: $45
Updated: 2021/12/16

TRC

Product number: D462545
Product name: 4,4''-Dimethyltriphenylamine
Packaging: 500mg
Price: $65
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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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''-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