5-Chloropyridazin-4-amine

Name: 5-Chloropyridazin-4-amine
Brand: ChemScene
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CAS No. 53180-92-0
Cat. No. CS-0054489
Purity≥97%
MDL No.MFCD11110434

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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 53180-92-0

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Description

5-Chloropyridazin-4-amine is a bench-stable heterocyclic amine featuring a chlorine substituent at the 5-position and a primary amine at the 4-position. This configuration enables direct functionalization in cross-coupling reactions and facilitates integration into bioactive scaffolds. The electron-deficient pyridazinone core enhances reactivity in nucleophilic substitution processes.

Application

5-Chloropyridazin-4-amine serves as a versatile building block in medicinal chemistry, enabling efficient access to pyridazinone-based scaffolds through nucleophilic substitution and coupling reactions. Its chlorine atom at the 5-position provides high reactivity for transition-metal-catalyzed cross-couplings, while the amino group at C4 offers direct functionality for derivatization. Bench-stable and readily purified by recrystallization, it facilitates scalable synthesis of bioactive heterocycles relevant to pharmaceutical development.

General Information

CAS No. 53180-92-0
Cat. No. CS-0054489
Purity ≥97%
MDL No. MFCD11110434
Storage -20°C, sealed storage, away from moisture and light
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₄H₄ClN₃
Molecular Weight 129.55
Synonym(s) 5-AMINO-4-CHLOROPYRIDAZINE
SMILES NC1=C(Cl)C=NN=C1

Computational Chemistry Data

TPSA 51.8
LogP 0.7122
H_Acceptors 3
H_Donors 1
Rotatable_Bonds 0

Safety Information

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GHS Pictogram : N/A	GHS No : N/A
Signal Word : N/A	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : N/A
Precautionary Statements : N/A

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Other Classifications

Building Blocks Functional Group Chloride

Building Blocks Skeleton Aromatic heterocycle compounds Pyridazine compounds

Key Words

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5-Chloropyridazin-4-amine

CAS No. 53180-92-0

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