C7H4ClNO4
201.56 g/mol
Pharmaceutical IntermediateWarning
2-CHLORO-3-NITROBENZOIC ACID
CAS3970-35-2EC223-590-3
Category
Pharmaceutical Intermediate
Compound Class
Organic Acid
Primary Use
Pharmaceutical Intermediate
2-Chloro-3-nitrobenzoic acid is a chemical compound that serves as an intermediate in pharmaceutical manufacturing. It features a benzene ring substituted with a chlorine atom, a nitro group, and a carboxylic acid group, giving it moderate polarity and aromatic character.
Pharmaceutical intermediate
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-Chloro-3-nitrotoluene
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pharmaceutical intermediate
ReferenceSame Category
4-Methyl-4-piperidinol
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pharmaceutical intermediate
ReferenceSame Category
(S)-2-Benzylsuccinic acid
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pharmaceutical intermediate
ReferenceSame Category
N-phenethyl-4-piperidinone
CAS39742-60-4
pharmaceutical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2-CHLORO-3-NITROBENZOIC ACID (CAS 3970-35-2) is 2916.39.
HS code (international, 6-digit)
2916.39
EU CN code (8-digit)
2916 39 90
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-chloro-3-nitrobenzoic acid
InChIKey
JRQDVRIQJJPHEQ-UHFFFAOYSA-N
SMILES
C1=CC(=C(C(=C1)[N+](=O)[O-])Cl)C(=O)O
Synonyms (11)
- MESALAZINE IMPURITY Q (EP IMPURITY)
- Mesalazine EP Impurity Q
- 2-CHLORO-3-NITROBENZOIC ACID
- 2-chloro-3-nitrobenzic acid
- 2-chloro-3-nitrobezoic acid
- 3-Nitro-2-chlorobenzoic acid
- MESALAZINE IMPURITY Q
- Nitrochlorbenzoesaure
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