C7H8N2O2
152.15 g/mol
Dye & PigmentDanger
2-Methyl-4-nitroaniline
CAS99-52-5EC202-762-1
Category
Dye & Pigment
Compound Class
Amine
Primary Use
dye intermediate
2-Methyl-4-nitroaniline is an organic compound used as a dye intermediate. Its structure features an aromatic ring with both an amino group and a nitro group, and the compound is known to exhibit hydrogen bonding in its crystalline form.
dye intermediate in the synthesis of azo dyes and pigmentsintermediate for producing naphthol-based fast 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
SimilarStructure SimilarSimilarity 0.74
5-nitro-O-toluidine
CAS99-55-8
pharmaceutical intermediate
ReferenceSame Category
4-nitro-o-phenylenediamine
CAS99-56-9
Hair dye intermediate
ReferenceSame Category
2-amino-4-nitrophenol
CAS99-57-0
Intermediate for mordant and acid dyes
ReferenceSame Category
2-methoxy-5-nitroaniline
CAS99-59-2
Intermediate for dyes and pigments
ReferenceSame Category
P-nitrotoluene
CAS99-99-0
Intermediate for azo and sulfur dyes
Safety Reference
Danger
H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled
H373May cause damage to organs through prolonged or repeated exposure
H411Toxic to aquatic life with long lasting effects
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 2-Methyl-4-nitroaniline (CAS 99-52-5) 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-methyl-4-nitroaniline
InChIKey
XTTIQGSLJBWVIV-UHFFFAOYSA-N
SMILES
CC1=C(C=CC(=C1)[N+](=O)[O-])N
Synonyms (59)
- 2-Amino-5-nitrotoluene
- 2-Methyl-4-nitroaniline
- 2-Methyl-4-nitrobenzenamine
- 2-Methyl-4-nitrophenylamine
- 2-Methyl-p-nitroaniline
- 3-Methyl-4-aminonitrobenzene
- 4-NITRO-2-TOLUIDINE
- 4-Nitro-2-methylaniline
- 4-Nitro-6-methylaniline
- 4-Nitro-o-toludine
- 4-Nitro-o-toluidine
- 4-amino-3-methyl-nitrobenzene
- 5-Nitro-2-aminotoluene
- Aniline, 2-methyl-4-nitro-
- Ansibases Red RL
- Azoene Fast Red GL Base
- Azogene Fast Red NRL Salt
- Azogene Fast Red RL
- Daito Red Base RL
- Devol Red RL
- Devol Red Salt E
- Diabase Red RL
- Diazo Fast Red RL
- Fast Red 5NT
- Fast Red 5NT Salt
- Fast Red Base RL
- Fast Red RL Base
- Fast Red Salt RL
- Hiltonil Fast Red RL Base
- Hiltosal Fast Red RL Salt
- Kako Red RL Base
- Kayaku Red RL Base
- METHYL-4-NITROANILINE, 2-
- MNA (OPTICAL CRYSTAL)
- Meisei Fast Red RL Base
- Meisi fast red rl base
- Mitsui Red RL Base
- NAPHTHOLEAN RED RL BASE
- Naphthoelan red rl base
- Naphtoelan Red RL Base
- Red Base Ciba X
- Red Base Irga X
- Red Base NRL
- Red RL Base
- Sanyo Fast Red RL Base
- Sanyo Fast Red Salt RL
- Spectrolene Red RL
- Symulon Red RL Base
- Tulabase Fast Red RL
- Yamada Fast Red RL Base
- o-Toluidine, 4-nitro-
- p-Nitro-o-toluidine
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