5306-96-7

Basic information

• Product Name: 2,3-DIMETHYL-P-PHENYLENEDIAMINE, 99
• Synonyms: 2,3-DIMETHYL-P-PHENYLENEDIAMINE, 99;2,3-dimethyl-p-phenylenedamine;4-AMINO-5,6-DIMETHYLANILINE;o-Xylene-3,6-diamine;2,3-dimethylbenzene-1,4-diamine;1,4-Diamino-2,3-dimethylbenzene;2,3-Dimethyl-1,4-benzenediamine;2,3-Dimethyl-1,4-phenylenediamine
• CAS NO: 5306-96-7
• Molecular Formula: C₈H₁₂N₂
• Molecular Weight: 136.1943
• Mol File: 5306-96-7.mol
• Article Data: 11

Chemical Properties

• Boiling Point: 289℃
• Flash Point: 152℃
• Appearance: /
• Density: 1.076
• Vapor Pressure: 0.00232mmHg at 25°C
• Refractive Index: 1.618
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• CAS DataBase Reference: 2,3-DIMETHYL-P-PHENYLENEDIAMINE, 99(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-DIMETHYL-P-PHENYLENEDIAMINE, 99(5306-96-7)
• EPA Substance Registry System: 2,3-DIMETHYL-P-PHENYLENEDIAMINE, 99(5306-96-7)

Safety Data

• Statements: R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
• Safety Statements: S22:Do not inhale dust.; S36/37:Wear suitable protective clothing and gloves.
• Hazardous Substances Data: 5306-96-7(Hazardous Substances Data)

Usage

General Description

2,3-DIMETHYL-P-PHENYLENEDIAMINE, 99 is a chemical compound also known as DMPD. It is a synthetic substance with a 99% purity level. DMPD is commonly used as an antioxidant and polymerization inhibitor in the production of rubber and resins. It helps prevent degradation and oxidation of the materials, thus extending their shelf life and improving their performance. DMPD is also used in hair dyes as a colorant and in the production of photographic chemicals. It is important to handle this chemical with care and follow proper safety protocols due to its potential hazards and toxicity.

InChI:InChI=1/C8H12N2/c1-5-6(2)8(10)4-3-7(5)9/h3-4H,9-10H2,1-2H3

Upstream product

• 7647-01-0 hydrogenchloride 
• 53877-42-2 4-(2,3-dimethyl-phenylazo)-2,3-dimethyl-aniline 
• 134-98-5 N-(2,3-dimethylphenyl)acetamide 
• 618-06-4 m-sulfanilic acid diazonium salt 
• 87-59-2 2,3-Dimethylaniline 
• 80879-86-3 2,3-dimethyl-4-nitroaniline 

Downstream Products

• 1071519-79-3 N₁,N₄-bis(tert-butoxycarbonyl)-2,3-dimethylbenzene-1,4-diamine 
• 226947-07-5 Mo(S₂CN(CH₂CH₃)2)2Cl₂(NC₆H₂(CH₃)2NH₂) 
• 503864-10-6 2,3-dimethyl-1,4-bis-[(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ylidenemethyl)amino]benzene 
• 16349-70-5 3,3'-dimethyl-1,1'-(2,3-dimethyl-p-phenylene)-bis-thiourea 

Relevant articles and documents

Design and synthesis of urea-linked aromatic oligomers-a route towards convoluted foldamers

Herein we report the design and synthesis of crescent-shaped and helical urea-based foldamers, the curvature of which is controlled by varying the constituent building blocks and their connectivity. These oligomers are comprised of two, three or five alternating aromatic heterocycles (pyridazine, pyrimidine or pyrazine) and methyl-substituted aromatic carbocycles (tolyl, o-xylyl or m-xylyl) connected together through urea linkages. A crescent-shaped conformational preference is encoded within these π-conjugated urea-linked oligomers based on intramolecular hydrogen bonding and steric interactions; the degree of curvature is tuned by the urea connectivity to the heterocycles and the aryl groups. NMR characterization of these foldamers confirms the intramolecular hydrogen-bonded conformation expected (Z,E configuration of the urea bond) in both the pyridazyl and pyrimidyl foldamers in solution. An X-ray crystal structure of the N3,N6-diisobutylpyridazine-4,6- diamine-o-tolyl urea-linked foldamer (4) confirms the presence of N-H...N hydrogen bonds between the heterocyclic nitrogen atom and the free hydrogen of the urea linkage. Additionally, the tolyl methyl group interacts unfavourably with the urea carbonyl oxygen, thus destabilising the alternate planar conformation.

1,3-Dihydroxybenzene derivatives and colorants containing said compounds

1,3-Dihydroxybenzene derivatives of general formula (I) or (Ia) or physiologically tolerated, water-soluble thereof wherein R′1 denotes substituted pyridyl group, a pyrimidyl group, a group of formula (IIa) or (IIIa) and the dyeing agents for keratin fibers containing these compounds.

Transition metal complexes as dye forming catalysts in hair coloring compositions

A hair coloring composition comprising a first composition which comprises: (a) a dye forming transition metal salt or complex; which is first applied to the hair; and a second composition which comprises the following two compositions which are mixed just prior to application to the hair: (a) a composition comprising a water-soluble peroxygen oxidizing agent; and (b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an aminophenol, a polyhydric phenol a catechol and mixtures thereof.