Description

Ethyl (E)-But-2-Enoate is a high-purity ester compound, specifically the ethyl ester of trans-crotonic acid. This chemical is valued for its role as a versatile flavor and fragrance intermediate and a key building block in organic synthesis. It is essential for manufacturers in the flavor & fragrance, pharmaceutical, and specialty chemical industries seeking reliable, high-quality raw materials for their production processes.

Application

• Flavor and Fragrance Ingredient: Used as a synthetic intermediate for creating fruity, sweet, and buttery flavor notes in food products and beverages, as well as in perfumery compositions.
• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Organic Synthesis: Acts as a Michael acceptor or an electrophile in various organic reactions, including conjugate additions and polymerizations.
• Polymer Industry: Can be utilized as a monomer or co-monomer in the production of specialty polymers and resins.
• Agrochemical Synthesis: Employed in the manufacturing of certain pesticides and herbicides.
• Research & Development: Used in academic and industrial R&D laboratories for chemical research and process development.

Basic Information

Product Name	Ethyl (E)-But-2-Enoate
CAS No.	77825-56-0
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	Ethyl trans-2-Butenoate; Ethyl (E)-2-Butenoate; trans-Ethyl Crotonate; (E)-Ethyl Crotonate; Ethyl (E)-Crotonate; Crotonic Acid Ethyl Ester (trans-); 2-Butenoic Acid, Ethyl Ester, (E)-; Ethyl β-Crotonate
EINECS	Contact for details

Quality Control

Our Ethyl (E)-But-2-Enoate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC and HPLC analysis, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with every shipment to guarantee compliance with your specifications.

Storage

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

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Isomeric Purity ((E)-isomer)	≥ 99.0%
Refractive Index (20°C)	1.423 - 1.427
Specific Gravity (20/20°C)	0.915 - 0.925

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