4-Bromo-2-methylbenzaldehyde

Name: 4-Bromo-2-methylbenzaldehyde
Brand: ChemScene
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CAS No. 24078-12-4
Cat. No. CS-W007710
Purity≥98%
MDL No.MFCD07787171

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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 24078-12-4

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Description

4-Bromo-2-methylbenzaldehyde features a bromine substituent at the para position relative to the aldehyde, combined with a methyl group ortho to the aldehyde. This electron-deficient aromatic scaffold enables direct coupling in cross-coupling reactions and serves as a key intermediate in pharmaceutical synthesis. The aldehyde functionality offers high reactivity for nucleophilic additions and condensation processes.

Application

4-Bromo-2-methylbenzaldehyde serves as a versatile building block in synthetic organic chemistry, enabling direct functionalization at the aldehyde and bromo positions. Its ortho-methyl group provides steric and electronic modulation, enhancing regioselectivity in electrophilic aromatic substitution and cross-coupling reactions. The molecule exhibits good bench stability and facilitates efficient transformations via Suzuki-Miyaura, Negishi, or Stille coupling protocols, making it a practical choice for constructing complex heterocycles and pharmaceutical intermediates.

General Information

CAS No. 24078-12-4
Cat. No. CS-W007710
Purity ≥98%
MDL No. MFCD07787171
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₇BrO
Molecular Weight 199.05
Synonym(s) Methyl-4-bromobenzaldehyde; 4-Bromo-2-methylbenzaldehyde
SMILES BrC1=CC(=C(C=O)C=C1)C

Computational Chemistry Data

TPSA 17.07
LogP 2.57002
H_Acceptors 1
H_Donors 0
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 Bromide

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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4-Bromo-2-methylbenzaldehyde

CAS No. 24078-12-4

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