Description

3-Butenoic Acid, 2-Methyl-, Methyl Ester is an unsaturated methyl ester with a reactive terminal alkene group. This compound matters as a versatile chemical intermediate, offering a reactive handle for polymerization and synthesis of specialty chemicals. It is needed by manufacturers in the polymer, agrochemical, and pharmaceutical industries for creating advanced materials and active ingredients.

Application

• Polymer & Resin Intermediate: Serves as a key monomer or co-monomer in the production of specialty polymers, coatings, and adhesives.
• Agrochemical Synthesis: Used as a building block in the manufacture of advanced pesticides, herbicides, and plant growth regulators.
• Pharmaceutical Intermediates: Acts as a precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Flavor & Fragrance Industry: Utilized in the creation of specific ester-based aroma compounds and flavoring agents.
• Organic Synthesis: Employed in various organic reactions, including Michael additions and cyclizations, to construct complex molecular frameworks.
• Crosslinking Agent: Functions as a reactive component in formulations for crosslinked polymers and thermosetting resins.

Basic Information

Product Name	3-Butenoic Acid, 2-Methyl-, Methyl Ester
CAS No.	51747-33-2
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	2-Methyl-3-butenoic acid methyl ester; Methyl 2-methyl-3-butenoate; Methyl 2-methylbut-3-enoate; 3-Butenoic acid, 2-methyl-, methyl ester; 2-Methyl-3-butenoic acid methyl ester; Methyl 2-methylbut-3-enoate; 2-Methylbut-3-enoic acid methyl ester
EINECS	257-359-8

Quality Control

Our 3-Butenoic Acid, 2-Methyl-, Methyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and fine chemical synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

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 acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.415 - 1.425
Density (20°C)	0.92 - 0.96 g/mL

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