4-Chlorophthalic acid

Name: 4-Chlorophthalic acid
Brand: ChemScene
Availability: InStock
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CAS No. 89-20-3
Cat. No. CS-0101178
Purity≥97%
MDL No.MFCD00044755

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 89-20-3

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Description

4-Chlorophthalic acid is a bench-stable, electron-deficient aromatic diacid featuring a chlorine substituent at the para position relative to one carboxyl group. This structural motif enables selective coupling reactions in polymer synthesis and coordination chemistry, where its dual functionality integrates seamlessly into rigid, functional architectures under standard conditions.

Application

4-Chlorophthalic acid serves as a versatile building block in synthetic organic chemistry, enabling the construction of phthalimide derivatives and heterocyclic scaffolds through standard amide formation and cyclization reactions. Its ortho-dicarboxylic acid functionality offers high reactivity in coupling processes, while the chloro substituent provides a handle for subsequent nucleophilic aromatic substitution. The compound exhibits good bench stability and facilitates straightforward purification, making it well-suited for medicinal chemistry and materials synthesis workflows.

General Information

CAS No. 89-20-3
Cat. No. CS-0101178
Purity ≥97%
MDL No. MFCD00044755
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₅ClO₄
Molecular Weight 200.58
Synonym(s) Phthalic acid, 4-chloro-
SMILES O=C(C1=CC=C(Cl)C=C1C(O)=O)O

Computational Chemistry Data

TPSA 74.6
LogP 1.7364
H_Acceptors 2
H_Donors 2
Rotatable_Bonds 2

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Other Classifications

Building Blocks Functional Group Carboxylic Acid

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

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4-Chlorophthalic acid

CAS No. 89-20-3

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