4-Bromo-2-methoxybenzoic acid

Name: 4-Bromo-2-methoxybenzoic acid
Brand: ChemScene
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CAS No. 72135-36-5
Cat. No. CS-W007799
Purity≥96%
MDL No.MFCD07780665

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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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4-Bromo-2-methoxybenzoic acid|CS-W007799

Structure of 72135-36-5

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Description

4-Bromo-2-methoxybenzoic acid features a bromine substituent at the para position relative to the carboxylic acid and a methoxy group at the ortho position, creating a uniquely electron-deficient aromatic scaffold. This combination enhances reactivity in cross-coupling processes while maintaining stability under standard conditions. The molecule integrates readily into pharmaceutical intermediates and functional materials requiring halogenated aryl motifs.

Application

4-Bromo-2-methoxybenzoic acid serves as a versatile building block in medicinal chemistry and agrochemical synthesis, enabling direct incorporation of bromo and methoxy functionalities into complex scaffolds. Its carboxylic acid group facilitates standard transformations such as amide formation, esterification, and decarboxylative coupling, while the ortho-methoxy substituent provides moderate electronic stabilization and orthogonal reactivity. The compound exhibits good bench stability and is compatible with palladium-catalyzed cross-coupling reactions, making it suitable for modular synthesis workflows.

General Information

CAS No. 72135-36-5
Cat. No. CS-W007799
Purity ≥96%
MDL No. MFCD07780665
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₇BrO₃
Molecular Weight 231.04
Synonym(s) Benzoic acid, 4-bromo-2-methoxy-
SMILES COC1=C(C=CC(Br)=C1)C(O)=O

Computational Chemistry Data

TPSA 46.53
LogP 2.1559
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 2

Safety Information

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GHS Pictogram :	GHS No : GHS06
Signal Word : Danger	UN#: 2811
Class : 6.1	Packing Group : Ⅲ
Hazard Statements : H301
Precautionary Statements : P264-P270-P330-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-methoxybenzoic acid

CAS No. 72135-36-5

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