7218-02-2

Basic information

• Product Name: 2,6-dimethylbenzene-1,4-diamine
• Synonyms: 2,6-dimethylbenzene-1,4-diamine;2,6-DIMETHYL-p-PHENYLENEDIAMINE;1,3-Dimethylbenzene-2,5-diamine;2,6-Dimethyl-1,4-phenylenediamine;m-Xylene-2,5-diamine;2,4-Dimethyl-1,3-benzenediamine;m-Xylene-2,4-diamine;4-Amino-2,6-dimethylaniline
• CAS NO: 7218-02-2
• Molecular Formula: C₈H₁₂N₂
• Molecular Weight: 136.19428
• EINECS: 230-608-3
• Mol File: 7218-02-2.mol

Chemical Properties

• Boiling Point: 282.2 °C at 760 mmHg
• Flash Point: 146.9 °C
• Appearance: /
• Density: 1.076 g/cm³
• Vapor Pressure: 0.0034mmHg at 25°C
• Refractive Index: 1.618
• Storage Temp.: 2-8°C
• PKA: 6.10±0.10(Predicted)
• CAS DataBase Reference: 2,6-dimethylbenzene-1,4-diamine(CAS DataBase Reference)
• NIST Chemistry Reference: 2,6-dimethylbenzene-1,4-diamine(7218-02-2)
• EPA Substance Registry System: 2,6-dimethylbenzene-1,4-diamine(7218-02-2)

Safety Data

• Hazardous Substances Data: 7218-02-2(Hazardous Substances Data)

Usage

Uses

Used in Dye and Pigment Production:
2,6-dimethylbenzene-1,4-diamine is utilized as an intermediate in the synthesis of dyes and pigments, contributing to the coloration and stability of these products in various applications.
Used in Pharmaceutical Synthesis:
2,6-dimethylbenzene-1,4-diamine serves as a key intermediate in the production of pharmaceuticals, playing a crucial role in the synthesis of various medicinal agents.
Used as a Curing Agent in Epoxy Resins:
2,6-dimethylbenzene-1,4-diamine is employed as a curing agent in epoxy resins, enhancing the hardening process and improving the final properties of the resin, such as strength and durability.
Used in Chemical Industry:
In the chemical industry, 2,6-dimethylbenzene-1,4-diamine is used as a versatile intermediate for the synthesis of a range of chemical products, highlighting its importance in the manufacturing process.

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

Upstream product

• 618-06-4 m-sulfanilic acid diazonium salt 
• 87-62-7 2,6-dimethylaniline 
• 1023292-40-1 N⁴-(diphenylmethylene)-2,6-dimethylbenzene-1,4-diamine 

Downstream Products

• 102441-52-1 N,N-dibenzoyl-2,6-dimethyl-p-phenylenediamine 
• 1392273-50-5 tert-butyl 4-amino-3,5-dimethylphenylcarbamate 
• 1541182-80-2 C₄₀H₄₈N₆O₉ 
• 1541182-79-9 C₄₃H₅₂N₆O₁₁ 
• 1541182-75-5 C₄₅H₅₆N₆O₁₁ 
• 1541182-85-7 C₂₂H₂₄N₆O₄ 
• 1541182-84-6 C₃₂H₄₀N₆O₈ 
• 1541182-73-3 C₂₆H₃₆N₂O₅ 

Relevant articles and documents

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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.

Process for dyeing keratinous fibers with aminoindoles and oxidation dye precursors at basic Ph's and dyeing agents

The invention relates to a process for dyeing keratinous fibres, which consists in applying to these fibres a composition containing, in a suitable medium for dyeing, at least one coupler of formula: STR1 where R1 denotes hydrogen or alkyl, R2 and R3 denote hydrogen, alkyl, COOR' where R' is alkyl or hydrogen, at least one of the groups R2 and R3 denoting hydrogen, R4 denotes hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl or aminoalkyl, Z1 and Z2 denote hydrogen, alkyl, hydroxyl, halogen, alkoxy, at least one of the groups Z1 and Z2 is other than hydrogen at least one oxidation dye precursor, at least one oxidizing agent, the pH of the composition applied to the fibres being higher than 7.

Methods for dyeing keratinous fibers with compositions which contain aminoindole couplers, oxidation dye precursors, and oxidizing agents at acid pHs

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3-substituted para-aminophenols

The invention concerns the use of a 3-substituted para-aminophenol as an oxidation dye precursor for dyeing keratinous fibres, in particular human hair. The 3-substituted para-aminophenol has formula: STR1 where R1 represents alkyl, alkenyl, mono- or polyhydroxyalkyl, nitrile, cyanoalkyl, halogenoalkyl, aminoalkyl or alkoxyalkyl and R2 represents hydrogen, alkyl or mono- or polyhydroxyalkyl, provided that when R2 is hydrogen R1 is not methyl or trifluoromethyl, and to addition salts thereof with an acid. The invention also concerns dye compositions containing compound (I). The invention further concerns novel 3-substituted para-aminophenols.

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Oxidation dye composition for keratinous fibres comprising a para-aminophenol, a meta-aminophenol and a para-phenylenediamine and/or a bis(phenylalkylenediamine)

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The invention relates to a process for dyeing keratinous fibres, comprising the simultaneous or sequential application of a component (A) containing at least one compound of formula (I): STR1 in which: R1 denotes hydrogen, alkyl, acetyl, benzoyl, phenyl or C1 -C4 carboxyalkyl, R2 and R3 denote hydrogen, alkyl, alkoxy, hydroxyalkyl, amino, halogen, nitro, alkylphenyl, phenyl, alkylamino or hydroxyalkylamino, and a component (B) containing at least (i) a compound of formula (II): STR2 in which: Y denotes OH or NR8 R9, R8 and R9, which are identical or different, denote hydrogen, aminoethyl, hydroxyethyl or C1 -C4 alkyl, R4 to R7 independently of each other denote a hydrogen atom, a C1 -C4 alkyl, a chlorine, a C1 -C4 alkoxy, an acetylamino, an aryloxy, not more than two of the groups R4 to R7 denote a hydrogen atom, excluding 2,5-dimethoxy-1,4-diaminobenzene, and the cosmetically acceptable salts, or (ii) a bisphenylalkylenediamine. It also relates to the dyeing agents for implementing it.