C6H5N3O5
199.12 g/mol
Dye & PigmentDanger
2-Amino-4,6-dinitrophenol
CAS96-91-3EC202-544-6
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
oxidation base for dyeing fur
Picramic acid, also known as 2-amino-4,6-dinitrophenol, is an acid obtained by neutralizing an alcoholic solution of picric acid with ammonium hydroxide and then treating it with hydrogen sulfide. It forms red crystals as ammonium salts and is primarily used as an oxidation base in fur dyeing.
oxidation base for dyeing fur
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
2-Amino-6-nitro-1-phenol-4-sulfonic acid
CAS96-93-5
Dye intermediate
ReferenceSame Category
2-nitro-4-methoxyaniline
CAS96-96-8
Pigment intermediate for fine chemicals
ReferenceSame Category
4-chloro-3-nitrobenzenesulfonamide
CAS97-09-6
Chemical intermediate for azo dyes
ReferenceSame Category
Fast Red ITR
CAS97-35-8
Azoic diazo component for dyeing
Safety Reference
Danger
H201Explosive; mass explosion hazard
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H412Harmful to aquatic life with long lasting effects
H402Harmful to aquatic life
H228Flammable solid
H301Toxic if swallowed
H317May cause an allergic skin reaction
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 2-Amino-4,6-dinitrophenol (CAS 96-91-3) 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-4,6-dinitrophenol
InChIKey
QXYMVUZOGFVPGH-UHFFFAOYSA-N
SMILES
C1=C(C=C(C(=C1N)O)[N+](=O)[O-])[N+](=O)[O-]
Synonyms (21)
- 2,4-Dinitro-6-aminophenol
- 2-Amino-4,6-dinitrophenol
- 4,6-DINITRO-2-AMINOPHENOL
- 6-Amino-2,4-dinitrophenol
- AMINO-4,6-DINITROPHENOL, 2-
- Acide picramique
- Acide picramique [French]
- C.I. Oxidation Base 21
- Fourrine 4R
- Fourrine 93
- Furro 4R
- Oxidation Base 21
- Phenol, 2-amino-4,6-dinitro-
- Picramic acid
- Pikraminsaure
- Zoba 4R
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