1-(4-bromophenyl)-4-methyl-1h-pyraZole

Name: 1-(4-bromophenyl)-4-methyl-1h-pyraZole
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CAS No. 1184673-82-2
Cat. No. CS-0247056
Molecule weight237.10
Purity≥98%
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+
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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1-(4-bromophenyl)-4-methyl-1h-pyraZole|CS-0247056

Structure of 1184673-82-2

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General Information

CAS No. 1184673-82-2
Cat. No. CS-0247056
Purity ≥98%
MDL No. None
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₀H₉BrN₂
Molecular Weight 237.10
Synonym(s) None
SMILES CC1=CN(C2=CC=C(Br)C=C2)N=C1

Description

1-(4-Bromophenyl)-4-methyl-1H-pyrazole features a brominated aromatic ring paired with a methyl-substituted pyrazole core, enabling efficient coupling in cross-coupling reactions. This bench-stable heterocycle integrates readily into pharmaceutical and agrochemical scaffolds, offering predictable reactivity under standard conditions.

Application

1-(4-Bromophenyl)-4-methyl-1H-pyrazole serves as a versatile building block in medicinal chemistry, enabling palladium-catalyzed cross-coupling reactions due to its stable bromo functionality. The pyrazole core offers moderate metabolic stability and functional group tolerance, facilitating downstream derivatization in API development. Its bench-stable crystalline form simplifies handling and purification in standard synthetic workflows.

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H312-H315-H319-H332-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501

Quality Control

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Computational Chemistry Data

TPSA 17.82
LogP 2.94322
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 1

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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1-(4-bromophenyl)-4-methyl-1h-pyraZole

CAS No. 1184673-82-2

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