3-Chloro-4-hydroxybenzaldehyde

Name: 3-Chloro-4-hydroxybenzaldehyde
Brand: ChemScene
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CAS No. 2420-16-8
Cat. No. CS-W008817
Purity≥97%
MDL No.MFCD00016981

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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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3-Chloro-4-hydroxybenzaldehyde|CS-W008817

Structure of 2420-16-8

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Description

3-Chloro-4-hydroxybenzaldehyde features a hydroxyl group adjacent to a chlorine-substituted benzene ring, enabling strong hydrogen bonding and enhanced solubility in polar solvents. This electron-deficient aldehyde integrates readily into coupling reactions, serving as a key building block for bioactive molecules and functional materials.

Application

3-Chloro-4-hydroxybenzaldehyde serves as a versatile building block in medicinal chemistry and agrochemical synthesis, enabling efficient access to substituted benzimidazoles, quinoline derivatives, and other heterocyclic scaffolds. The aldehyde group facilitates nucleophilic addition and condensation reactions, while the phenolic hydroxyl and chloro substituents offer orthogonal reactivity for selective functionalization. Bench-stable and readily purified by recrystallization, it functions effectively in standard coupling and cyclization protocols.

General Information

CAS No. 2420-16-8
Cat. No. CS-W008817
Purity ≥97%
MDL No. MFCD00016981
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₇H₅ClO₂
Molecular Weight 156.57
Synonym(s) 4-Hydroxy-3-chlorobenzaldehyde; 4-Hydroxy-5-chlorobenzaldehyde; 3-CHLORO-4-HYROXYBENZALDEHYDE; 3-Chloro-4-hydroxybenzaldehyde
SMILES O=CC1=CC=C(O)C(Cl)=C1

Computational Chemistry Data

TPSA 37.3
LogP 1.8581
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 1

Safety Information

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GHS Pictogram :	GHS No : GHS05,GHS07
Signal Word : Danger	UN#: 1759
Class : 8	Packing Group : Ⅲ
Hazard Statements : H302-H315-H317-H318-H335
Precautionary Statements : P261-P264-P270-P271-P272-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501

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Other Classifications

Building Blocks Functional Group Chloride

Building Blocks Functional Group Aldehyde

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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3-Chloro-4-hydroxybenzaldehyde

CAS No. 2420-16-8

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