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Ingredient Dictionary

TOLUENE-2,6-DIAMINE

2,6-diaminotoluene is a diamine that is toluene in which both of the hydrogens ortho- to the methyl group are replaced by amino groups.

Molecular structure

Definition

2,6-diaminotoluene is a diamine that is toluene in which both of the hydrogens ortho- to the methyl group are replaced by amino groups. It has a role as a mutagen. It is a diamine and a primary amino compound. It derives from a hydride of a toluene.

Source: PubChem

US FDA substance register · UNII H838Q10551 · registered name TOLUENE-2,6-DIAMINE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Toluene-2,6-Diamine is the substituted aromatic amine that conforms to the formula:

Cosmetic roles

Dyes hairHAIR DYEING

Safety & regulatory references

Banned
Argentina · ASEAN · Brazil · Canada · China · European Union · South Korea · Taiwan · United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · Health Canada Cosmetic Ingredient Hotlist · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · UK cosmetics regulations (OPSS)

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex II (prohibited substances), entry 413

Source: EU prohibited substances (Annex II)

Health Canada Cosmetic Ingredient Hotlist · prohibited in cosmetics

Source: Health Canada Cosmetic Ingredient Hotlist

Restriction II/413

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

TOLUENE-2,6-DIAMINEINCI1,3-Benzenediamine, 2-methyl-Synonym톨루엔-2,6-다이아민Korean label name (MFDS standard)2-메틸-m-페닐렌다이아민(톨루엔-2,6-다이아민)Korean label name (MFDS standard)
CAS No.chemical registry number
823-40-5
EC No.EU chemical inventory number
212-513-9
DTXSIDUS EPA chemical ID
DTXSID4027319
DTXCIDUS EPA compound ID
DTXCID207319
IUPAC
2-Methylbenzene-1,3-diamine
Molecular formula
C7H10N2
Molecular weight
122.171 g/mol

Measured properties

Appearance
2,6-diaminotoluene is a colorless prisms (from water). (NTP, 1992) · Other Solid
Boiling point
289 °C
Melting point
223 °F (NTP, 1992) · 106 °C
Solubility
Soluble (NTP, 1992) · Soluble in water, ethanol, benzene
Colour
colourless
Melting/freezing point
106 ℃
Initial boiling point and range
289 ℃
Flash point
148 ℃
Vapour pressure
0.00246 ㎜Hg (at 25℃)
Water solubility
72500 ㎎/ℓ (at 25℃)
n-Octanol/water partition coefficient (Kow)
0.16
Molecular weight
122.17

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 2 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

  • Intermediate1
  • Dye1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 1 eye studies are on record.

Classed as moderate1

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 4 studies
  • Skin Sens. 1
    Skin Sensitization · Authoritative
  • Category 2
    Skin Irritation · Screening
  • Classification not possible
    Skin Sensitization · Screening
  • Category 2
    Eye Irritation · Screening

Source: US EPA CompTox dashboard

Related literature

Linked databases 22