Description

5-Cyanophthalide is a high-purity organic intermediate of significant importance in advanced chemical synthesis. Its value lies in its role as a versatile building block for the production of complex molecules, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for manufacturers and R&D teams developing active pharmaceutical ingredients (APIs), specialty dyes, and advanced materials who require a reliable and consistent supply of critical intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with complex heterocyclic structures.
• Agrochemical Synthesis: Used in the manufacturing of advanced herbicides, fungicides, and insecticides, where the phthalide and nitrile functionalities are valuable.
• Dye and Pigment Manufacturing: Serves as a building block for producing high-performance organic dyes and pigments, especially phthalocyanine derivatives.
• Organic Light-Emitting Diodes (OLEDs): Investigated as a starting material for electron-transport or emissive layer materials in OLED device research.
• Ligand and Catalyst Development: Utilized in academic and industrial research for creating novel ligands and organocatalysts.
• Polymer Modification: Acts as a functional monomer or cross-linking agent in the synthesis of specialty polymers with tailored properties.

Basic Information

Product Name	5-Cyanophthalide
CAS No.	82104-74-3
Molecular Formula	C9H5NO2
Molecular Weight	159.14 g/mol
Synonyms	5-Cyanophthalide; 1,3-Dihydro-5-cyano-1,3-dioxoisobenzofuran; 5-Cyano-1,3-dihydroisobenzofuran-1,3-dione; 5-Cyanophthalic anhydride; 5-Cyanoisobenzofuran-1,3-dione; 5-CN-PA; 5-Cyano PA
EINECS	Contact for details

Quality Control

Our 5-Cyanophthalide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for fine chemical and pharmaceutical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, impurity profile, and physical characteristics.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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