Description

Diethyl 4-Pentenylmalonate is a versatile malonic ester derivative characterized by its reactive pentenyl side chain. This compound serves as a crucial building block in organic synthesis, enabling the construction of complex molecular frameworks through its active methylene group. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical and fine chemical industries for the synthesis of active pharmaceutical ingredients (APIs), agrochemicals, and specialty materials.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing complex heterocycles and carbocycles used in drug discovery and API manufacturing.
• Agrochemical Synthesis: Precursor for creating novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Used in the preparation of flavors, fragrances, and advanced polymer precursors.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and resins.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic synthesis, including Michael additions and alkylation reactions.

Basic Information

Product Name	Diethyl 4-Pentenylmalonate
CAS No.	1906-96-3
Molecular Formula	C₁₂H₂₀O₄
Molecular Weight	228.29 g/mol
Synonyms	Diethyl 4-pentenylpropanedioate; Diethyl (4-pentenyl)malonate; 4-Pentenylmalonic Acid Diethyl Ester; Propanedioic acid, (4-pentenyl)-, diethyl ester; Malonic acid, (4-pentenyl)-, diethyl ester; Diethyl 4-pentenylmalonate; Diethyl pent-4-en-1-ylmalonate
EINECS	217-624-5

Quality Control

Our Diethyl 4-Pentenylmalonate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopy (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available for every shipment. We adhere to cGMP guidelines where applicable to support our customers' regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound may be sensitive to prolonged exposure to air and moisture; consider storage under an inert atmosphere for long-term preservation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.430 - 1.440
Density (20°C)	0.98 - 1.02 g/mL

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