4-Bromo-3-methoxybenzaldehyde

Name: 4-Bromo-3-methoxybenzaldehyde
Brand: ChemScene
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CAS No. 43192-34-3
Cat. No. CS-W005212
Purity≥98%
MDL No.MFCD11846303

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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+
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4-Bromo-3-methoxybenzaldehyde|CS-W005212

Structure of 43192-34-3

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Description

4-Bromo-3-methoxybenzaldehyde features a bromine substituent and methoxy group positioned ortho to the aldehyde functionality, enabling selective coupling in cross-coupling reactions. The electron-rich aromatic system enhances reactivity in Suzuki-Miyaura and Negishi transformations, while the aldehyde remains stable under standard conditions. This compound serves as a key intermediate in synthesizing bioactive molecules and functional materials.

Application

4-Bromo-3-methoxybenzaldehyde serves as a versatile building block in medicinal chemistry and materials synthesis, enabling efficient access to substituted benzimidazoles, heterocycles, and pharmaceutical intermediates. Its aldehyde functionality facilitates coupling reactions such as Ugi, Wittig, and reductive amination, while the bromo and methoxy groups offer orthogonal handles for further functionalization via Pd-catalyzed cross-coupling or electrophilic substitution. The compound exhibits excellent bench stability and is readily purified by flash chromatography or recrystallization, making it well-suited for scalable synthetic workflows.

General Information

CAS No. 43192-34-3
Cat. No. CS-W005212
Purity ≥98%
MDL No. MFCD11846303
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₇BrO₂
Molecular Weight 215.04
Synonym(s) Benzaldehyde, 4-bromo-3-methoxy-
SMILES COC1=C(Br)C=CC(C=O)=C1

Computational Chemistry Data

TPSA 26.3
LogP 2.2702
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 Bromide

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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4-Bromo-3-methoxybenzaldehyde

CAS No. 43192-34-3

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