2-Chloro-4-hydroxybenzaldehyde

Name: 2-Chloro-4-hydroxybenzaldehyde
Brand: ChemScene
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CAS No. 56962-11-9
Cat. No. CS-B0153
Purity≥98%
MDL No.MFCD00052184

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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 56962-11-9

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Description

2-Chloro-4-hydroxybenzaldehyde features a hydroxyl group flanked by electron-withdrawing chlorine and aldehyde functionalities, enabling direct coupling in heterocyclic synthesis. This ortho-directing system facilitates regioselective functionalization under mild conditions, while the phenolic moiety enhances solubility in polar solvents and supports metal coordination in catalytic systems.

Application

2-Chloro-4-hydroxybenzaldehyde serves as a versatile building block in medicinal chemistry and agrochemical synthesis, enabling efficient access to substituted benzimidazoles, quinolines, and other heterocyclic scaffolds. The ortho-chloro and para-hydroxyl groups provide complementary sites for electrophilic substitution and coupling reactions, while the aldehyde functionality facilitates reductive amination, Ullmann-type couplings, and condensation reactions. Bench-stable and readily purified by recrystallization, it offers reliable performance in multi-step syntheses.

General Information

CAS No. 56962-11-9
Cat. No. CS-B0153
Purity ≥98%
MDL No. MFCD00052184
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₇H₅ClO₂
Molecular Weight 156.57
Synonym(s) 2-Chlor-4-hydroxy-benzaldehyde
SMILES O=CC1=CC=C(O)C=C1Cl

Computational Chemistry Data

TPSA 37.3
LogP 1.8581
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 1

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 Chloride

Building Blocks Functional Group Aldehyde

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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2-Chloro-4-hydroxybenzaldehyde

CAS No. 56962-11-9

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