Description

2-Butenoic Acid, 3-Hydroxy-, Methyl Ester (9Ci) CAS NO 34136-04-4 is a versatile chemical intermediate belonging to the class of hydroxy esters. This compound is valued for its bifunctional reactivity, featuring both a hydroxyl group and an ester moiety, which makes it a crucial building block in advanced organic synthesis. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the production of active pharmaceutical ingredients (APIs), particularly for molecules requiring chiral centers or specific ester functionalities.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators, leveraging its reactivity to create complex molecular structures.
• Polymer Modification: Acts as a monomer or co-monomer for synthesizing specialty polymers with tailored properties such as biodegradability or specific hydrophilicity.
• Flavor and Fragrance Industry: Employed as a precursor for synthesizing esters and lactones that contribute to complex aroma and flavor profiles.
• Organic Synthesis Research: A valuable reagent in academic and industrial R&D for constructing complex organic molecules, including natural product analogs.
• Cross-Coupling Reactions: Utilized in palladium-catalyzed and other metal-mediated coupling reactions to form carbon-carbon bonds.

Basic Information

Product Name	2-Butenoic Acid, 3-Hydroxy-, Methyl Ester (9Ci)
CAS No.	34136-04-4
Molecular Formula	C5H8O3
Molecular Weight	116.12 g/mol
Synonyms	Methyl 3-Hydroxy-2-butenoate; Methyl 3-Hydroxycrotonate; 3-Hydroxy-2-butenoic Acid Methyl Ester; 3-Hydroxycrotonic Acid Methyl Ester; Acetoacetic Acid Methyl Ester Enol Form; Methyl 3-Hydroxybut-2-enoate
EINECS	Contact for details

Quality Control

Our 2-Butenoic Acid, 3-Hydroxy-, Methyl Ester is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, assay, 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, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque or amber packaging, or stored in darkness.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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