Description

4,5-Dihydro-3-Hydroxy-3-(1-Oxobutyl)-1(3H)-Isobenzofuranone is a specialized organic compound belonging to the class of isobenzofuranone derivatives, serving as a valuable synthetic intermediate. This compound matters for its role in facilitating complex organic transformations, particularly in the synthesis of fine chemicals and advanced pharmaceutical scaffolds. It is needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to build novel molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other high-value specialty chemicals.
• Organic Synthesis Research: A versatile reagent for academic and industrial R&D focused on novel heterocyclic and fused-ring systems.
• Material Science: Potential monomer or additive in the development of advanced polymeric materials with specific functional properties.

Basic Information

Product Name	4,5-Dihydro-3-Hydroxy-3-(1-Oxobutyl)-1(3H)-Isobenzofuranone
CAS No.	94530-82-2
Molecular Formula	C₁₂H₁₄O₄
Molecular Weight	222.24 g/mol
Synonyms	3-Hydroxy-3-butyrylphthalide; 3-Butyryl-3-hydroxyphthalide; 3-Hydroxy-3-(1-oxobutyl)-1(3H)-isobenzofuranone; 3-(1-Oxobutyl)-3-hydroxyphthalide; 3-Hydroxy-3-butanoylphthalide; 3-Butanoyl-3-hydroxyphthalide; 4,5-Dihydro-3-hydroxy-3-butyrylphthalide
EINECS	Contact for details

Quality Control

Our 4,5-Dihydro-3-Hydroxy-3-(1-Oxobutyl)-1(3H)-Isobenzofuranone is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics. Our quality commitment supports applications requiring high-purity intermediates for research and cGMP manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which may affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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