C6H6N2O3
154.12 g/mol
Dye & PigmentWarning
2-AMINO-4-NITROPHENOL
CAS99-57-0EC202-767-9
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Intermediate for mordant and acid dyes
2-Amino-4-nitrophenol is a chemical compound that appears as orange prisms or a yellow powder with no odor. It is primarily used as an intermediate in the production of mordant and acid dyes.
Intermediate for mordant and acid dyesComponent of hair dye productsAntioxidant and light stabilizer in butyl rubbers
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
2-amino-5-nitrophenol
CAS121-88-0
hair dye intermediate
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
ReferenceSame Category
Acid Black 210
CAS99576-15-5
Azo dye for protein staining
ReferenceSame Category
4-nitro-o-phenylenediamine
CAS99-56-9
Hair dye intermediate
Safety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H351Suspected of causing cancer
H317May cause an allergic skin reaction
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 2-AMINO-4-NITROPHENOL (CAS 99-57-0) is 2922.29.
HS code (international, 6-digit)
2922.29
EU CN code (8-digit)
2922 29 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-amino-4-nitrophenol
InChIKey
VLZVIIYRNMWPSN-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1[N+](=O)[O-])N)O
Synonyms (25)
- 2-AMINO-4-NITROPHENOL
- 2-Amino-4-nitrofenol
- 2-Amino-4-nitrofenol [Czech]
- 2-Hydroxy-5-nitroaniline
- 2-amino-p-nitrophenol
- 3-Amino-4-hydroxynitrobenzene
- 4-Nitro-2-aminofenol
- 4-Nitro-2-aminofenol [Czech]
- 4-Nitro-2-aminophenol
- 4Nitro-o-aminophenol
- 5-Nitro-2-hydroxyaniline
- AMINO-4-NITROPHENOL, 2-
- Bendamustine Impurity 59
- Phenol, 2-amino-4-nitro-
- Rodol 42
- p-Nitro-o-aminophenol
- p-Nitroaminofenol
- p-Nitroaminofenol [Polish]
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