C6H4ClNO2
157.55 g/mol
Industrial ChemicalDanger
4-Chloronitrobenzene
CAS100-00-5EC202-809-6
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Intermediate for dyes and agrochemicals
4-Chloronitrobenzene is a pale yellow solid organic compound. It serves as a common intermediate in the production of various industrially useful compounds, including antioxidants used in rubber.
Intermediate for dyesIntermediate for agrochemicalsIntermediate for antioxidants
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 100-00-5
Related Compounds
ReferenceSame Category
4-nitrophenol
CAS100-02-7
Intermediate for insecticides and dyes
ReferenceSame Category
P-nitrobenzyl chloride
CAS100-14-1
chemical intermediate for synthesis
ReferenceSame Category
Terephthaloyl chloride
CAS100-20-9
Intermediate for synthetic fibers and resins
ReferenceSame Category
2-(diethylamino)ethanol
CAS100-37-8
chemical intermediate for pharmaceuticals and industrial chemicals
Referencestereoisomer of
Benzene-1,2,4,5-d4, 3-chloro-6-nitro-
CAS68239-23-6
research reagent
Safety Reference
Danger
H301Toxic if swallowed
H311Toxic in contact with skin
H331Toxic if inhaled
H341Suspected of causing genetic defects
H351Suspected of causing cancer
H373May cause damage to organs through prolonged or repeated exposure
H411Toxic to aquatic life with long lasting effects
H302Harmful if swallowed
H350May cause cancer
H360May damage fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H320Causes eye irritation
H361Suspected of damaging fertility or the unborn child
H312Harmful in contact with skin
Customs Tariff Classification
The international HS code for 4-Chloronitrobenzene (CAS 100-00-5) is 2904.99.
HS code (international, 6-digit)
2904.99
EU CN code (8-digit)
2904 99 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
1-chloro-4-nitrobenzene
InChIKey
CZGCEKJOLUNIFY-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1[N+](=O)[O-])Cl
Synonyms (37)
- CNB
- PNCB
- 1-CHLORO-4-NITROBENZENE
- 1-Chloor-4-nitrobenzeen
- 1-Chlor-4-nitrobenzol
- 1-Cloro-4-nitrobenzene
- 1-Nitro-4-chlorobenzene
- 1-chloro-4-nitrobenzen
- 4-Chloro-1-nitrobenzene
- 4-Chloronitrobenzene
- 4-Nitro-1-chlorobenzene
- 4-Nitrochlorobenzene
- 4-nitrochlorobenezene
- Acetaminophen Impurity 30
- Benzene, 1-chloro-4-nitro-
- CHLORO-4-NITROBENZENE, 1-
- Nitrobenzene, 4-chloro-
- Nitrochlorobenzene, p-
- Nitrochlorobenzene, para
- p-Chloronitrobenzene
- p-Nitrochloorbenzeen
- p-Nitrochloorbenzeen [Dutch]
- p-Nitrochlorobenzene
- p-Nitrochlorobenzol
- p-Nitrochlorobenzol [German]
- p-Nitroclorobenzene
- p-Nitroclorobenzene [Italian]
- p-Nitrophenyl chloride
- parachloronitrobenzene
- paranitrochlorobenzene