Description

3-(4-Ethoxyphenyl)-4-Oxo-3,4-Dihydrophthalazine-1-Carboxylic Acid is a high-purity organic compound belonging to the phthalazine class, serving as a critical advanced intermediate in pharmaceutical synthesis. Its precise molecular structure makes it a valuable building block for developing active pharmaceutical ingredients (APIs) and other fine chemicals. This product is primarily targeted at research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality intermediates for complex synthesis pathways.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Research: Used in the development and production of advanced pesticides, herbicides, and plant growth regulators that incorporate the phthalazine moiety.
• Organic Synthesis & Material Science: Serves as a versatile precursor for creating specialized ligands, catalysts, and functional organic materials in academic and industrial R&D.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and other performance chemicals where its specific structure imparts desired properties.

Basic Information

Product Name	3-(4-Ethoxyphenyl)-4-Oxo-3,4-Dihydrophthalazine-1-Carboxylic Acid
CAS No.	421565-92-6
Molecular Formula	C17H14N2O4
Molecular Weight	310.31 g/mol
Synonyms	1-Carboxy-3-(4-ethoxyphenyl)-4-oxo-3,4-dihydrophthalazine; 3-(4-Ethoxyphenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxylic acid; 1-Phthalazinecarboxylic acid, 3-(4-ethoxyphenyl)-3,4-dihydro-4-oxo-; 4-Oxo-3-(4-ethoxyphenyl)-3,4-dihydrophthalazine-1-carboxylic acid; 3-(p-Ethoxyphenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-(4-Ethoxyphenyl)-4-Oxo-3,4-Dihydrophthalazine-1-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids. For long-term storage, consider conditions under an inert atmosphere to maintain optimal stability.

Specification

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

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