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Description
4-Ethoxycinnamic Acid is a cinnamic acid derivative carrying an ethoxy group at the para position of the benzene ring. It belongs to the family of non-heterocyclic building blocks used in organic synthesis, materials science, and functional materials research. The cinnamic acid framework consists of an aromatic ring connected to a carboxylic acid group through a conjugated double bond, producing an extended π-electron system. This system is what gives cinnamate derivatives their ultraviolet absorption behaviour and their responsiveness to light, properties that underpin many of their applications in the laboratory.
The main characteristic that makes this compound attractive is the combination of an electron-donating ethoxy group and an electron-withdrawing carboxylate group at opposite ends of the molecule, creating a push–pull character within an elongated molecular shape. This kind of rigid rod-like structure is a classic motif for the formation of liquid crystalline phases, while the C=C double bond can undergo isomerisation as well as [2+2] cycloaddition under ultraviolet irradiation. The carboxylic acid group also provides a convenient synthetic handle that is readily converted into esters, amides, or acid chlorides.
In Indonesian laboratories, this material is typically used in university research groups, materials chemistry laboratories, and institutional R&D units working on organic synthesis and functional materials. It is normally ordered as a catalogue research chemical for bench-scale preparative work, method development, and student research projects, where a well-defined and reproducible building block is required. Supplied under the TCI brand, it fits routine synthetic workflows in academic and industrial research settings.
Laboratory Applications
Organic synthesis building block — the carboxylic acid group can be converted into esters, amides, or acid chlorides, making it a versatile starting point for constructing larger target molecules.
Liquid crystal research — the rigid, elongated rod-like molecular geometry is a classic structural motif for generating liquid crystalline phases in mesogen design and materials studies.
Photochemistry studies — the conjugated C=C double bond undergoes isomerisation and [2+2] cycloaddition under ultraviolet irradiation, making the compound useful for investigating light-driven reactions.
Functional materials development — the push–pull arrangement of the electron-donating ethoxy group and electron-withdrawing carboxylate supports research into materials with tailored electronic characteristics.
Ultraviolet absorption work — the extended π-electron system of the cinnamate framework gives characteristic ultraviolet absorption behaviour that is exploited in photoresponsive and light-absorbing material research.
Specifications
Brand: TCI
CAS number: 2373-79-7
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes: available in standard catalogue pack sizes; please refer to the current product listing for the options offered
Storage: keep in a tightly closed original container, protected from light, in accordance with the manufacturer's product documentation
Handling and Storage
Store the material in its original tightly closed container in a cool, dry, and well-ventilated area, away from direct sunlight and ultraviolet sources, since the conjugated double bond is photoresponsive and may undergo unwanted isomerisation or cycloaddition on prolonged light exposure. Amber glass or the supplied packaging is suitable for keeping the solid protected from light and moisture. Handle inside a fume hood using standard laboratory personal protective equipment, including safety glasses, a laboratory coat, and chemical-resistant gloves. Avoid generating dust when weighing, keep the container closed when not in use, and always consult the manufacturer's safety data sheet before use and for disposal guidance.
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