Description

Phthalazine-1-Carboxylic Acid CAS NO 801161-36-4 is a versatile heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique fused ring structure makes it a valuable intermediate for constructing complex molecules with specific biological or material properties. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs), agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and oncology.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic scaffold.
• Material Science: Serves as a monomer or functionalizing agent in the creation of specialty polymers, dyes, and organic electronic materials.
• Chemical Synthesis: Employed as a versatile building block for constructing complex heterocyclic compounds, such as fused pyridazines and diazepines, in medicinal chemistry.
• Academic & R&D: Utilized in university and corporate research laboratories for method development and exploring new chemical reactions.
• Ligand Synthesis: Can be derivatized to create novel chelating ligands for catalysis or metal-organic frameworks (MOFs).

Basic Information

Item	Details
Product Name	Phthalazine-1-Carboxylic Acid
CAS No.	801161-36-4
Molecular Formula	C9H6N2O2
Molecular Weight	174.16 g/mol
Synonyms	1-Phthalazinecarboxylic Acid; Phthalazine-1-carboxylic acid; 1-Carboxyphthalazine; Phthalazinecarboxylic acid; 4,5-Benzopyridazine-1-carboxylic acid; 1,2-Diazanaphthalene-1-carboxylic acid; 1,2-Diazaanthracene-1-carboxylic acid (non-standard); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Phthalazine-1-Carboxylic 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 tests for residual solvents and heavy metals. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent degradation. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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