C7H9N
107.15 g/mol
Dye & PigmentDanger
P-Toluidine
CAS106-49-0EC203-403-1
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Intermediate for dyes manufacture
p-Toluidine is a colorless solid used primarily as an intermediate in the manufacture of dyes. It can also serve as a reagent in organic chemical synthesis and may be absorbed through the skin.
Intermediate for dyes manufactureReagent for organic chemical synthesisManufacture of Basic Red 9 and Acid Green 25 dyes
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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hair dye and dye intermediate
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textile and leather dye
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fluorescent cyanine dye
ReferenceSame Category
3,5-xylidine
CAS108-69-0
Intermediate for Pigment Red 149
Referencestereoisomer of
P-TOLUIDINE-D3 (METHYL-D3)
CAS23346-25-0
research compound
Referencestereoisomer of
P-TOLUIDINE-D9
CAS352431-23-3
research compound
Referencestereoisomer of
4-(²H₃)Methyl(²H₄)aniline
CAS68693-08-3
research compound
Safety Reference
Danger
H301Toxic if swallowed
H311Toxic in contact with skin
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H331Toxic if inhaled
H351Suspected of causing cancer
H400Very toxic to aquatic life
H411Toxic to aquatic life with long lasting effects
H302Harmful if swallowed
H335May cause respiratory irritation
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects
H315Causes skin irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for P-Toluidine (CAS 106-49-0) is 2921.43.
HS code (international, 6-digit)
2921.43
EU CN code (8-digit)
2921 43 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
4-methylaniline
InChIKey
RZXMPPFPUUCRFN-UHFFFAOYSA-N
SMILES
CC1=CC=C(C=C1)N
Synonyms (40)
- 4MN
- P-TOLUIDINE, United States Pharmacopeia (USP)
- 1-Amino-4-methylbenzene
- 4-AMINOTOLUENE
- 4-Amino-1-methylbenzene
- 4-Aminotoluen
- 4-Aminotoluen [Czech]
- 4-METHYLBENZAMINE
- 4-Methylaniline
- 4-Methylbenzenamine
- 4-Toluidine
- 4-methylphenylamine
- 4-tolylamine
- AMINOBENZOIC ACID IMPURITY D
- AZOIC COUPLING COMPONENT 107
- Aniline, 4-methyl-
- Aniline, p-methyl-
- Benzenamine, 4-methyl-
- Naphtol AS-KG
- Naphtol AS-KGLL
- Toluidine, p-
- p-Aminotoluene
- p-Methylaniline
- p-Methylbenzenamine
- p-Toluidin
- p-Toluidin [Czech]
- p-Toluidine
- p-Toluidine, for synthesis
- p-Toluidine, liquid or solid
- p-Toluidyna
- p-Toluidyna [Polish]
- p-Tolylamine
- para-methylaniline
- para-toluidine
- section signa-Touidine
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