Description

trans-Cinnamic Acid CAS NO 140-10-3 is a white to slightly yellow crystalline powder belonging to the class of aromatic unsaturated carboxylic acids. This versatile organic intermediate is prized for its role as a key building block in the synthesis of pharmaceuticals, fine chemicals, and flavor & fragrance compounds. It is essential for manufacturers in the pharmaceutical, agrochemical, and cosmetic industries seeking a reliable, high-purity raw material.

Application

• Pharmaceutical Intermediates: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), including anticoagulants, anti-inflammatory drugs, and other therapeutic agents.
• Flavor and Fragrance (F&F) Industry: Used in the production of esters like methyl cinnamate and ethyl cinnamate, which are valued for their sweet, balsamic, and fruity notes in perfumes and food flavorings.
• Agrochemical Synthesis: Serves as a key intermediate for manufacturing certain fungicides, herbicides, and plant growth regulators.
• UV Absorbers and Sunscreens: Its structure makes it a useful starting material for synthesizing organic compounds that absorb ultraviolet light for personal care and polymer stabilization applications.
• Fine Chemical Synthesis: Employed in organic synthesis for producing cinnamates, cinnamyl derivatives, and other specialty chemicals used in research and manufacturing.
• Cosmetic Ingredients: Used in the formulation of certain cosmetic products, often derived from its ester forms for their aromatic properties.

Basic Information

Product Name	trans-Cinnamic Acid
CAS No.	140-10-3
Molecular Formula	C9H8O2
Molecular Weight	148.16 g/mol
Synonyms	(E)-Cinnamic Acid; trans-3-Phenylacrylic Acid; (E)-3-Phenyl-2-propenoic Acid; Cinnamylic Acid; Phenylacrylic Acid; Benzenepropenoic Acid; Isocinnamic Acid; Cinnamic Acid (trans-isomer)
EINECS	205-398-1

Quality Control

Our trans-Cinnamic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for pharmaceutical and fine chemical applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and consistency.

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, strong bases, and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	132 - 135 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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