C7H9N
107.15 g/mol
Dye & PigmentDanger
O-Toluidine
CAS95-53-4EC202-429-0
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Manufacture of dyes and herbicides
o-Toluidine is an organic compound and one of the three isomeric toluidines. It is a colorless liquid that is primarily used in the manufacture of dyes and herbicides.
Manufacture of dyesProduction of herbicides
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 95-53-4
Related Compounds
ReferenceSame Category
2-aminophenol
CAS95-55-6
intermediate for dyes and pharmaceuticals
ReferenceSame Category
4-chloro-2-methylaniline
CAS95-69-2
Intermediate for azo dyes and pigments
ReferenceSame Category
Toluene-2,5-diamine
CAS95-70-5
Hair dye intermediate
ReferenceSame Category
5-chloro-O-toluidine
CAS95-79-4
intermediate for organic dyestuffs
Referencestereoisomer of
2-(Methyl-d3)-aniline
CAS151985-13-6
research compound
Safety Reference
Danger
H301Toxic if swallowed
H319Causes serious eye irritation
H331Toxic if inhaled
H350May cause cancer
H400Very toxic to aquatic life
H312Harmful in contact with skin
H315Causes skin irritation
H341Suspected of causing genetic defects
H411Toxic to aquatic life with long lasting effects
H227
H302Harmful if swallowed
H332Harmful if inhaled
H336May cause drowsiness or dizziness
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects
H313May be harmful in contact with skin
H316Causes mild skin irritation
H340May cause genetic defects
H373May cause damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for O-Toluidine (CAS 95-53-4) 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
2-methylaniline
InChIKey
RNVCVTLRINQCPJ-UHFFFAOYSA-N
SMILES
CC1=CC=CC=C1N
Synonyms (47)
- Prilocaine EP impurity B
- 1-Amino-2-methylbenzene
- 1-Methyl-2-aminobenzene
- 2-AMINOTOLUENE
- 2-Amino-1-methylbenzene
- 2-Aminotoluene (o-toluidine)
- 2-Methyl-1-aminobenzene
- 2-Methylaniline
- 2-Methylbenzamine
- 2-Methylbenzenamine
- 2-Toluidine
- 2-Toluidine-d7
- 2-methylphenylamine
- 2-tolylamine
- Aniline, 2-methyl-
- Benzenamine, 2-methyl-
- Benzenamine, methyl-
- O-TOLUIDINE(1%)
- O-Toluidine (ACD/Name 4.0)
- O-Toluidine-d3(methyl-d3)
- PRILOCAINE IMPURITY B
- Prilocaine Impurity 31
- o-Aminotoluene
- o-Methylaniline
- o-Methylbenzenamine
- o-Toluide
- o-Toluidin
- o-Toluidin [Czech]
- o-Toluidine
- o-Toluidine, liquid
- o-Toluidine, liquid or solid
- o-Toluidine, p.a.
- o-Toluidyna
- o-Toluidyna [Polish]
- o-Tolylamine
- ortho-toluidine
- ortho-tolylamine