Description

(E)-Methyl 4-Methoxybut-2-Enoate is a high-purity, unsaturated ester building block with significant synthetic utility. This compound is valued for its role as a versatile intermediate in the synthesis of complex organic molecules, particularly in fine chemical and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing key molecular frameworks.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring specific alkene geometry.
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other specialty organic compounds.
• Material Science Research: Employed in the development of novel polymers and functional materials via polymerization or cross-linking reactions.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic synthesis, including cross-coupling and cycloaddition reactions.

Basic Information

Product Name	(E)-Methyl 4-Methoxybut-2-Enoate
CAS No.	13168-99-5
Molecular Formula	C6H10O3
Molecular Weight	130.14 g/mol
Synonyms	Methyl (E)-4-Methoxy-2-butenoate; trans-Methyl 4-Methoxybut-2-enoate; (E)-Methyl 4-Methoxy-2-butenoate; Methyl trans-4-Methoxycrotonate; 4-Methoxy-2-butenoic Acid Methyl Ester; (E)-4-Methoxybut-2-enoic Acid Methyl Ester; Methyl 4-Methoxycrotonate; 2-Butenoic acid, 4-methoxy-, methyl ester, (2E)-
EINECS	Contact for details

Quality Control

Our (E)-Methyl 4-Methoxybut-2-Enoate is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment and is available upon request.

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 strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Isomeric Purity ((E)-isomer)	≥ 98.0% (by GC or HPLC)
Water Content (KF)	≤ 0.5%

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