Description

3-Methyl-2-Pentenoic Acid Methyl Ester is a versatile α,β-unsaturated ester with a distinct chemical structure, serving as a valuable intermediate in fine chemical synthesis. Its primary value lies in its role as a key building block for creating complex molecules, particularly in the fragrance and pharmaceutical sectors. This compound is essential for manufacturers and R&D chemists in the flavor & fragrance, agrochemical, and pharmaceutical industries who require high-purity intermediates for advanced synthesis.

Application

• Fragrance and Flavor Intermediate: Acts as a crucial precursor for synthesizing specific fruity, green, or woody aroma chemicals.
• Pharmaceutical Building Block: Used in the research and development of active pharmaceutical ingredients (APIs) due to its reactive α,β-unsaturated ester moiety.
• Agrochemical Synthesis: Serves as an intermediate in the production of certain pesticides and herbicides.
• Organic Synthesis Reagent: Employed in various organic reactions, including Michael additions and cyclizations, to construct more complex molecular frameworks.
• Polymer Modification: Can be used as a monomer or cross-linking agent in specialty polymer chemistry.
• Research & Development: A valuable compound for academic and industrial R&D in synthetic organic chemistry.

Basic Information

Product Name	3-Methyl-2-Pentenoic Acid Methyl Ester
CAS No.	50652-79-4
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	Methyl 3-methyl-2-pentenoate; 3-Methyl-2-pentenoic acid methyl ester; 2-Pentenoic acid, 3-methyl-, methyl ester; Methyl 3-methylpent-2-enoate; (E/Z)-Methyl 3-methyl-2-pentenoate; 3-Methyl-2-pentenoic acid, methyl ester; Methyl β-methyl-α-pentenoate
EINECS	256-673-5

Quality Control

Our 3-Methyl-2-Pentenoic Acid Methyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets the high standards required for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent evaporation and maintain purity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0% (sum of isomers)
Isomer Ratio (E/Z)	Specified on COA
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.430 - 1.440
Density (20°C)	0.910 - 0.930 g/mL

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