Description

δ-Lactone CAS NO 126784-20-1 is a high-purity, specialized lactone compound valued for its role as a versatile chemical intermediate and building block. Its unique cyclic ester structure makes it a critical precursor in the synthesis of complex molecules, particularly in advanced pharmaceutical and fine chemical manufacturing. This product is essential for R&D laboratories and production facilities focused on developing active pharmaceutical ingredients (APIs), agrochemicals, and high-value performance materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Used as a versatile precursor for creating specialty chemicals, flavors, and fragrances.
• Agrochemical Research: Serves as an intermediate in the development of novel pesticides and herbicides.
• Polymer Chemistry: Acts as a monomer or modifying agent for producing specialized polyesters and biodegradable polymers.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploratory organic synthesis.

Basic Information

Product Name	δ-Lactone
CAS No.	126784-20-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	δ-Lactone; δ-Valerolactone (related structure); 5-Pentanolide; 1,5-Pentanolide; 4-Hydroxypentanoic acid lactone; 5-Hydroxypentanoic acid lactone; Pentanoic acid, 5-hydroxy-, γ-lactone; 5-Membered cyclic ester
EINECS	Contact for details

Quality Control

Our δ-Lactone is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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