Description

4-Aminophthalide is a versatile organic intermediate characterized by its fused phthalide and aniline structure. This compound matters for its role as a key building block in the synthesis of more complex heterocyclic systems and functional dyes. Industries such as pharmaceuticals, agrochemicals, and specialty chemical research require this high-purity intermediate for developing active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs) and potential drug candidates.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a key component in the production of specialized dyes, optical brighteners, and colorants.
• Organic Light-Emitting Diodes (OLEDs): Investigated as a building block for electron-transport materials or emissive layers in organic electronics.
• Chemical Research & Development: Employed in academic and industrial R&D for constructing complex heterocyclic compounds and exploring new chemical entities.
• Coordination Chemistry: Can function as a ligand for metal complexes in catalytic and material science applications.

Basic Information

Product Name	4-Aminophthalide
CAS No.	59434-19-4
Molecular Formula	C8H7NO2
Molecular Weight	149.15 g/mol
Synonyms	4-Amino-1(3H)-isobenzofuranone; 4-Amino-2-benzofuran-1(3H)-one; 4-Aminophthalimidine; 1(3H)-Isobenzofuranone, 4-amino-; 4-Amino-1-oxo-1,3-dihydroisobenzofuran; 4-Aminophthalan-1-one; 4-Amino-3H-isobenzofuran-1-one
EINECS	Contact for details

Quality Control

Our 4-Aminophthalide 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 advanced synthetic applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and consistency for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.