6-Bromo-3-chloro-4-methylpyridazine

Name: 6-Bromo-3-chloro-4-methylpyridazine
Brand: ChemScene
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CAS No. 89283-91-0
Cat. No. CS-0160534
Purity≥97%
MDL No.MFCD29477565

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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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6-Bromo-3-chloro-4-methylpyridazine|CS-0160534

Structure of 89283-91-0

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General Information

CAS No. 89283-91-0
Cat. No. CS-0160534
Purity ≥97%
MDL No. MFCD29477565
Storage -20°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₄BrClN₂
Molecular Weight 207.46
Synonym(s) None
SMILES CC1=CC(Br)=NN=C1Cl

Description

6-Bromo-3-chloro-4-methylpyridazine is a halogenated pyridazine derivative featuring bromine at the 6-position, chlorine at the 3-position, and a methyl group at the 4-position. This electron-deficient heterocycle serves as a key building block in medicinal chemistry, enabling direct functionalization in cross-coupling reactions. The strategic placement of halogens allows for selective transformations under palladium catalysis, while the methyl substituent enhances lipophilicity and metabolic stability. Its bench-stable nature facilitates handling in synthetic workflows.

Application

6-Bromo-3-chloro-4-methylpyridazine serves as a versatile building block in medicinal chemistry, enabling site-specific functionalization via cross-coupling reactions. The bromo and chloro substituents offer orthogonal reactivity for Pd-catalyzed coupling, while the methyl group enhances metabolic stability. Bench-stable and readily purified, it facilitates efficient access to substituted pyridazinone scaffolds common in kinase inhibitors and antiviral agents.

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS06
Signal Word : Danger	UN#: 2811
Class : 6.1	Packing Group : Ⅲ
Hazard Statements : H301-H311-H331
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P361+P364-P405-P501

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Computational Chemistry Data

TPSA 25.78
LogP 2.20092
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyridazine compounds

Key Words

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6-Bromo-3-chloro-4-methylpyridazine

CAS No. 89283-91-0

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