4-Bromophthalazin-1(2H)-one

Name: 4-Bromophthalazin-1(2H)-one
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 19064-73-4
Cat. No. CS-0041952
Purity≥95%
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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Description

4-Bromophthalazin-1(2H)-one features a brominated phthalazine core with a lactam functionality, offering a versatile scaffold for medicinal chemistry. The electron-deficient ring system enables efficient coupling reactions, while the bench-stable nature facilitates handling under standard conditions. This compound serves as a key intermediate in synthesizing bioactive heterocycles and pharmaceutical candidates.

Application

4-Bromophthalazin-1(2H)-one serves as a versatile building block for heterocyclic synthesis, enabling palladium-catalyzed cross-coupling reactions due to its stable bromo substituent. The phthalazinone core provides inherent rigidity and hydrogen-bonding capacity, enhancing solubility and crystallinity during purification. This compound exhibits excellent bench stability and functional group tolerance, facilitating downstream modifications in medicinal chemistry campaigns targeting kinase inhibitors and other bioactive scaffolds.

General Information

CAS No. 19064-73-4
Cat. No. CS-0041952
Purity ≥95%
MDL No. None
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₅BrN₂O
Molecular Weight 225.04
Synonym(s) 4-bromo-2H-phthalazin-1-one
SMILES O=C1NN=C(Br)C2=C1C=CC=C2

Computational Chemistry Data

TPSA 45.75
LogP 1.6856
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 0

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Phthalazine compounds

Drug Discovery Cancer PARP

Key Words

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4-Bromophthalazin-1(2H)-one

CAS No. 19064-73-4

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