3-Chloro-4-methoxybenzaldehyde

Name: 3-Chloro-4-methoxybenzaldehyde
Brand: ChemScene
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CAS No. 4903-09-7
Cat. No. CS-W004738
Purity≥95%
MDL No.None

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
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Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
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3-Chloro-4-methoxybenzaldehyde|CS-W004738

Structure of 4903-09-7

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Description

3-Chloro-4-methoxybenzaldehyde features a chlorine substituent at the meta position and a methoxy group at the para position relative to the aldehyde, delivering enhanced electron-withdrawing character and improved solubility in polar organic solvents. This configuration enables efficient coupling reactions in pharmaceutical intermediates and functional material synthesis.

Application

3-Chloro-4-methoxybenzaldehyde serves as a versatile building block in medicinal chemistry and agrochemical synthesis, enabling efficient access to substituted benzene scaffolds. Its orthogonal functional groups—chlorine and methoxy—facilitate diverse downstream transformations including Suzuki-Miyaura coupling, nucleophilic substitution, and electrophilic aromatic substitution. The aldehyde group provides a key handle for reductive amination, imine formation, and Ugi-type condensations. Bench-stable and readily purified by recrystallization, it supports scalable synthesis with predictable regioselectivity in standard reaction conditions.

General Information

CAS No. 4903-09-7
Cat. No. CS-W004738
Purity ≥95%
MDL No. None
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₇ClO₂
Molecular Weight 170.59
Synonym(s) 3-CHLORO-4-METHOXYBENZENECARBALDEHYDE
SMILES COC1=C(Cl)C=C(C=O)C=C1

Computational Chemistry Data

TPSA 26.3
LogP 2.1611
H_Acceptors 2
H_Donors 0
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 Aldehyde

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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3-Chloro-4-methoxybenzaldehyde

CAS No. 4903-09-7

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