Description

(E)-3-(2-Methylphenyl)Prop-2-Enoic Acid CAS NO 939-57-1 is a high-purity, light-sensitive cinnamic acid derivative characterized by its specific stereochemistry and ortho-methyl substitution. This compound serves as a versatile and critical pharmaceutical intermediate and organic synthesis building block, enabling the construction of complex molecules for advanced research and development. It is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and fine chemical sectors seeking reliable, high-quality raw materials for synthesis.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds targeting inflammation and metabolic disorders.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its aromatic structure.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and specialty polymers requiring specific cis/trans configurations.
• Organic Light-Emitting Diodes (OLEDs): Acts as a core component in the development of novel organic electronic materials and charge-transport layers.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic chemistry, including cross-coupling and condensation reactions.
• Liquid Crystal & Dye Intermediates: Utilized in the synthesis of advanced materials for display technology and specialized dyes.

Basic Information

Product Name	(E)-3-(2-Methylphenyl)Prop-2-Enoic Acid
CAS No.	939-57-1
Molecular Formula	C10H10O2
Molecular Weight	162.19 g/mol
Synonyms	(E)-2-Methylcinnamic Acid; trans-2-Methylcinnamic Acid; (2E)-3-(2-Methylphenyl)prop-2-enoic Acid; o-Methylcinnamic Acid; 2-Methyl-trans-cinnamic Acid; 3-(2-Methylphenyl)-2-propenoic Acid; (E)-3-o-Tolylacrylic Acid; NSC 404083
EINECS	213-357-5

Quality Control

Our (E)-3-(2-Methylphenyl)Prop-2-Enoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications for use in sensitive applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	136°C - 140°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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