Description

2-Butenoic Acid, Propyl Ester, (2E)- is a high-purity, unsaturated ester derivative of butenoic acid, characterized by its specific (E)- or trans- configuration. This compound serves as a valuable chemical intermediate and specialty solvent in advanced organic synthesis and industrial formulations. It is primarily sought by manufacturers in the flavor & fragrance, pharmaceutical, and polymer industries for its unique reactivity and solvency profile.

Application

• Flavor and Fragrance Ingredient: Used as a building block or modifier in the synthesis of esters and lactones for creating fruity, buttery, or creamy notes.
• Pharmaceutical Intermediate: Acts as a key synthon in the production of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Polymer and Resin Modifier: Employed as a reactive diluent or cross-linking agent in specialty polymer formulations, including coatings and adhesives.
• Specialty Solvent: Functions as a solvent for resins, oils, and other organic compounds in high-performance industrial applications.
• Organic Synthesis Reagent: Utilized in various organic reactions, including Michael additions and esterification processes, due to its α,β-unsaturated carbonyl structure.
• Research & Development: Serves as a standard or starting material in chemical research for developing new compounds and methodologies.

Basic Information

Product Name	2-Butenoic Acid, Propyl Ester, (2E)-
CAS No.	7726-60-5
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	(E)-2-Butenoic Acid Propyl Ester; trans-2-Butenoic Acid Propyl Ester; (E)-Crotonic Acid Propyl Ester; Propyl (E)-2-Butenoate; Propyl trans-2-Butenoate; Propyl (E)-Crotonate; 2-Butenoic acid, propyl ester, (E)-; NSC 153849
EINECS	231-782-2

Quality Control

Every batch of 2-Butenoic Acid, Propyl Ester, (2E)- is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards and provide comprehensive Certificates of Analysis (COA) for each shipment, detailing purity, identity, and impurity profiles. Our quality commitment supports applications requiring high consistency and traceability.

Storage

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

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Isomeric Purity ((E)-isomer)	≥ 99.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.423 - 1.427
Specific Gravity (20/20°C)	0.910 - 0.920

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