3-Chloro-5-methylpyridazine

Name: 3-Chloro-5-methylpyridazine
Brand: ChemScene
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CAS No. 89283-31-8
Cat. No. CS-0051407
Purity≥97%
MDL No.MFCD09743645

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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+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

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Structure of 89283-31-8

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Description

3-Chloro-5-methylpyridazine is a heterocyclic building block featuring a chlorinated pyridazine core with a methyl group at the 5-position. This electron-deficient scaffold integrates readily into medicinal chemistry campaigns, offering enhanced metabolic stability and tunable reactivity in cross-coupling transformations. The pendant chlorine enables direct functionalization under palladium-catalyzed conditions, while the methyl substituent modulates lipophilicity and steric profile.

Application

3-Chloro-5-methylpyridazine serves as a versatile building block in medicinal chemistry, enabling efficient construction of heterocyclic scaffolds via palladium-catalyzed cross-coupling reactions. The chloropyridazine core exhibits excellent bench stability and tolerates a range of functional groups, facilitating downstream derivatization. Its reactivity profile supports reliable incorporation into bioactive molecules, particularly in the development of kinase inhibitors and targeted therapeutics.

General Information

CAS No. 89283-31-8
Cat. No. CS-0051407
Purity ≥97%
MDL No. MFCD09743645
Storage -20°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₅ClN₂
Molecular Weight None
Synonym(s) 3-Chloro-5-methylpyridazine hydrochloride
SMILES CC1=CN=NC(Cl)=C1

Computational Chemistry Data

TPSA 25.78
LogP 1.43842
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Safety Information

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GHS Pictogram :	GHS No : GHS05,GHS07,GHS08
Signal Word : Danger	UN#: 1759
Class : 8	Packing Group : Ⅲ
Hazard Statements : H302-H315-H318-H335-H351
Precautionary Statements : P201-P202-P260-P264-P270-P271-P280-P301+P310-P302+P352-P304+P340-P305+P351+P338-P308+P313-P310-P312-P330-P332+P313-P362+P364-P403+P233-P405-P501

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyridazine compounds

Key Words

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3-Chloro-5-methylpyridazine

CAS No. 89283-31-8

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