C8H9NO2
151.16 g/mol
Industrial ChemicalWarning
4-Nitro-o-xylene
CAS99-51-4EC202-761-6
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
organic synthesis intermediate
4-Nitro-o-xylene is a yellow crystalline solid used primarily as an intermediate in organic synthesis. It is also applied as a gelatinizing accelerator for pyroxylin.
organic synthesis intermediategelatinizing accelerator for pyroxylin
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
3-nitrobenzaldehyde
CAS99-61-6
organic synthesis intermediate
ReferenceSame Category
Isophthaloyl chloride
CAS99-63-8
intermediate for dyes and synthetic fibers
ReferenceSame Category
P-dichloro benzene
CAS99-65-0
intermediate for dyes and explosives
ReferenceSame Category
4-((4,6-bis(octylthio)-1,3,5-triazin-2-yl)amino)-2,6-bis(1,1-dimethylethyl)-phenol
CAS991-84-4
Antioxidant stabilizing agent
Safety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 4-Nitro-o-xylene (CAS 99-51-4) is 2904.20.
HS code (international, 6-digit)
2904.20
EU CN code (8-digit)
2904 20 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
1,2-dimethyl-4-nitrobenzene
InChIKey
HFZKOYWDLDYELC-UHFFFAOYSA-N
SMILES
CC1=C(C=C(C=C1)[N+](=O)[O-])C
Synonyms (13)
- 1,2-DIMETHYL-4-NITROBENZENE
- 1,2-dimethyl-4-nitrobenzol
- 3,4-Dimethyl-1-nitrobenzene
- 3,4-Dimethylnitrobenzene
- 3-nitro-6-xylene
- 4-Nitro-1,2-dimethylbenzene
- 4-Nitro-o-xylene
- 4-nitro-o-xylol
- Benzene,2-dimethyl-4-nitro-
- o-Xylene, 4-nitro-
- p-Nitro-o-xylene
- para-Nitro-ortho-xylene
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