Description

Methyl Crotonate is a versatile, highly volatile ester of crotonic acid, widely utilized as a key intermediate in organic synthesis. Its value lies in its reactive α,β-unsaturated carbonyl structure, making it an essential building block for creating more complex molecules. This compound is particularly important for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop active ingredients, fragrances, and functional monomers.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators.
• Flavor and Fragrance Ingredient: Acts as a building block for creating specific ester notes and aroma chemicals.
• Polymer and Resin Modifier: Functions as a co-monomer or cross-linking agent in specialty polymer formulations.
• Organic Synthesis Reagent: Employed in Michael addition reactions, Diels-Alder reactions, and other carbon-carbon bond-forming processes.
• Chemical Research & Development: Used in laboratories for method development and the synthesis of novel organic compounds.

Basic Information

Product Name	Methyl Crotonate
CAS No.	18707-60-3
Molecular Formula	C5H8O2
Molecular Weight	100.12 g/mol
Synonyms	2-Butenoic acid, methyl ester; Methyl (E)-2-butenoate; Methyl trans-2-butenoate; Crotonic acid methyl ester; trans-Methyl crotonate; Methyl β-methylacrylate; 2-Butenoic acid methyl ester; Methyl crotonate (trans)
EINECS	242-516-3

Quality Control

Our Methyl Crotonate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including assay by GC, identification by IR spectroscopy, and impurity profiling, to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is 2-8°C for extended stability, though short-term storage at 15-25°C is acceptable.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Trans-isomer Content (GC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.1%
Refractive Index (n20D)	1.424 - 1.428
Density (20°C)	0.945 - 0.955 g/mL

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