C6H7N3O2
153.14 g/mol
Dye & PigmentWarning
2-Nitro-4-phenylenediamine
CAS5307-14-2EC226-164-5
Category
Dye & Pigment
Compound Class
Amine
Primary Use
hair dye intermediate
2-Nitro-4-phenylenediamine is a hair dye intermediate that appears as almost black needles with a dark-green luster or a black powder. It is used in formulations for semi-permanent and permanent hair dyes.
hair dye intermediatedyeing furs brown and reddish brown
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
ApplicationSame Use
2-amino-5-nitrophenol
CAS121-88-0
hair dye intermediate
ReferenceSame Category
N,N'-diphenylbenzidine
CAS531-91-9
dye intermediate
ReferenceSame Category
Chrysoidine hydrochloride
CAS532-82-1
Basic dye for textiles
ReferenceSame Category
4-Amino-N,N-dimethylaniline dihydrochloride
CAS536-46-9
photographic developer intermediate
ReferenceSame Category
N,N-dimethyl-p-phenylenediamine sulfate
CAS536-47-0
Oxidation base for hair dyes
Safety Reference
Warning
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for 2-Nitro-4-phenylenediamine (CAS 5307-14-2) is 2921.51.
HS code (international, 6-digit)
2921.51
EU CN code (8-digit)
2921 51 19
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-nitrobenzene-1,4-diamine
InChIKey
HVHNMNGARPCGGD-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1N)[N+](=O)[O-])N
Synonyms (36)
- 2-NPPD
- 2NDB
- 1,4-Benzenediamine, 2-nitro-
- 1,4-Diamino-2-nitrobenzene
- 1,4-Diaminonitrobenzol
- 2,5-Diaminonitrobenzene
- 2-N-p-PDA
- 2-NITRO-P-PHENYLENEDIAMINE
- 2-Nitro-1,4-benzenediamine
- 2-Nitro-1,4-diaminobenzene
- 2-Nitro-1,4-phenylenediamine
- 2-Nitro-4-aminoaniline
- 2-Nitro-4-phenylenediamine
- 2-Nitro-para-phenylenediamine
- 2-Nitrol-p-phenylenediamine
- 2-nitro-benzene-1,4-diarnine
- 2-nitrobenzene-1,4-diamine
- 4-Amino-2-nitroaniline
- C.I. Oxidation Base 22
- Durafur Brown
- Durafur Brown 2R
- Dye GS
- Fouramine 2R
- Fourrine 36
- Fourrine Brown 2R
- NITRO-P-PHENYLENEDIAMINE, 2-
- Nitro-p-phenylenediamine
- Oxidation base 22
- Ursol Brown RR
- Zoba Brown RR
- o-Nitro-p-phenylenediamine
- p-Phenylenediamine, 2-nitro-
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