Description

4-(1-Oxophthalazin-2(1H)-Yl)Benzoic Acid is a high-purity organic compound serving as a key pharmaceutical intermediate and versatile building block in advanced organic synthesis. Its unique molecular architecture, featuring a benzoic acid moiety linked to a phthalazinone core, makes it valuable for constructing complex heterocyclic systems. This compound is primarily utilized by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting kinase inhibition and other therapeutic pathways.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Material Science: Serves as a monomer or functional additive in the research of advanced polymers, liquid crystals, and organic electronic materials.
• Chemical Synthesis: A versatile reagent for constructing complex heterocyclic compounds and for use in metal-catalyzed cross-coupling reactions.
• Academic & R&D: Employed in university and corporate research laboratories for methodological studies and the discovery of new chemical entities.

Basic Information

Product Name	4-(1-Oxophthalazin-2(1H)-Yl)Benzoic Acid
CAS No.	859300-33-7
Molecular Formula	C15H10N2O3
Molecular Weight	266.25 g/mol
Synonyms	4-(1-Oxo-2(1H)-phthalazinyl)benzoic acid; 4-(1-Oxophthalazin-2-yl)benzoic acid; 4-(2-Oxo-1,2-dihydrophthalazin-1-yl)benzoic acid; 4-(2-Oxo-1H-phthalazin-1-yl)benzoic acid; Benzoic acid, 4-(1-oxo-2(1H)-phthalazinyl)-; 859300-33-7; 4-(1-Oxo-1,2-dihydrophthalazin-2-yl)benzoic acid; 4-(1-Oxo-1H-phthalazin-2-yl)benzoic acid
EINECS	Contact for details

Quality Control

Our 4-(1-Oxophthalazin-2(1H)-Yl)Benzoic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications. Custom purity grades and analytical packages are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.