What is Cinnamaldehyde CAS 104-55-2?

Cinnamaldehyde is an aromatic aldehyde with the molecular formula C9H8O and a molecular weight of about 132.16. It is also known as cinnamic aldehyde, cinnamal, or 3-phenyl-2-propenal, and appears as a pale yellow to yellow liquid with a cinnamon-like odor.

Is Cinnamaldehyde available as a natural or synthetic material?

Both routes are possible. Natural cinnamaldehyde can be obtained from cinnamon oil or cinnamon bark, while synthetic material is produced by chemical synthesis. The selected grade depends on the target application, regulatory requirements, and cost profile.

What are the main flavor and fragrance applications?

It is used to create cinnamon-type flavor and fragrance profiles in food, beverage, personal care, household cleaners, and air fresheners. Its characteristic aldehydic cinnamon note makes it useful in both fine fragrance and functional fragrance formulations.

What chemical intermediate and antimicrobial uses does CAS 104-55-2 have?

Its conjugated aldehyde structure makes it a useful building block in selected fine chemical synthesis. Cinnamaldehyde also shows antimicrobial and antifungal activity, so it is studied or used in food preservation, agrochemical, and antibacterial formulation applications.

What are the key specifications of industrial or fine chemical grade?

Typical specifications include a GC assay of at least 98.0%, appearance as a pale yellow to yellow liquid, density around 1.041-1.050 g/cm3 at 20 C, refractive index near 1.622, and boiling point around 248-252 C.

How should Cinnamaldehyde CAS 104-55-2 be stored?

Keep it tightly closed in a cool, dry, well-ventilated area and protect it from direct sunlight, heat, ignition sources, strong oxidizers, and strong bases. Use appropriate gloves, goggles, protective clothing, and ventilation during bulk handling.

Cinnamaldehyde CAS 104-55-2

Cinnamaldehyde is an aromatic aldehyde used in the Fine Chemical and Basic & Fine Chemicals supply chain as a reactive organic compound for formulation and process use, and this material, also known in technical trade language as cinnamic aldehyde, cinnamal, (E)-3-phenylprop-2-enal, and 3-phenyl-2-propenal, corresponding to CAS 104-55-2, is characterized by its conjugated aldehyde structure that contributes aldehydic reactivity and odor-active functionality, making it commonly applied in flavor and fragrance processing, aroma chemical blending, and selected chemical intermediate systems where controlled identity and composition are required; This product is typically offered with competitive factory pricing, customized specifications, document support including MSDS, TDS, COA, and stable bulk supply.

CAS: 104-55-2
Synonyms: Cinnamic aldehyde; Cinnamal; (E)-3-phenylprop-2-enal; 3-Phenyl-2-propenal; 3-Phenylprop-2-enal
Einecs: 203-213-9
Molecular Formula: C9H8O
Grade: Industrial Grade / Fine Chemical Grade
Package: Common export packing includes 25 kg drum and 200 kg drum; customized packing can be arranged

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Product Description

1 Technical Data

1.1 Applications

1.2 Storage & Safety

1.3 Quality Assurance

Technical Data

Item	Typical Specification / Reference Value
Appearance	Pale yellow to yellow liquid
Assay	≥98.0% (GC)
CAS No.	104-55-2
EC / EINECS No.	203-213-9
Molecular Formula	C9H8O
Molecular Weight	132.16
Odor	Characteristic cinnamon-like odor
Melting Point / Freezing Point	about -7.5 to -8 °C
Boiling Point	about 248–252 °C
Density	about 1.041–1.050 g/cm³ at 20 °C
Refractive Index	about 1.622
Water Solubility	Slightly soluble in water
Solubility in Organic Media	Soluble in alcohol; compatible with many organic solvent systems
Vapor Density	about 4.6 (air = 1)
Flash Point	method-dependent; commonly reported around 105–131 °C
Storage Stability	Keep tightly closed and protected from heat, light, and oxidizing conditions

For a separate sweet-vanillic flavour or fragrance aldehyde, Ethyl Vanillin is used in different flavour and odour formulations.

Applications

1. Flavor and fragrance processing
Cinnamaldehyde is commonly used as an aroma chemical raw material in flavor and fragrance systems where a defined aldehydic cinnamon profile is required.

2. Chemical intermediate use
Its conjugated aldehyde structure allows it to serve as an intermediate or building block in selected fine chemical synthesis routes.

3. R&D and formulation screening
It is also used in laboratory and pilot-scale formulation work for identity-controlled aromatic aldehyde input.

Storage & Safety

Store in a cool, dry, and well-ventilated area. Keep the container tightly closed. Protect from direct sunlight, heat sources, and ignition sources. Avoid contact with strong oxidizing agents and strong bases. During handling, use suitable PPE including chemical-resistant gloves, protective goggles, and protective clothing. Local exhaust ventilation is recommended for bulk transfer or repeated handling. Avoid direct skin contact and inhalation of vapors. Follow the current SDS for industrial handling, spill response, and disposal procedures.

Quality Assurance

A credible factory quality program for cinnamaldehyde usually includes identity and purity control by GC, with additional confirmation methods such as GC-MS or NMR when needed for higher-traceability supply. Routine release items often include assay, appearance, color, density, refractive index, and selected impurity checks. If the material is intended for regulated downstream sectors, documentation control, batch traceability, and the applicable plant quality system should be confirmed case by case. GMP status should not be assumed unless the specific manufacturing site and grade are explicitly declared as such.

FAQ - Technical & Supply Chain

Q:
What is Cinnamaldehyde CAS 104-55-2?

A: Cinnamaldehyde is an aromatic aldehyde with the molecular formula C9H8O and a molecular weight of about 132.16. It is also known as cinnamic aldehyde, cinnamal, or 3-phenyl-2-propenal, and appears as a pale yellow to yellow liquid with a cinnamon-like odor.
Q:
Is Cinnamaldehyde available as a natural or synthetic material?

A: Both routes are possible. Natural cinnamaldehyde can be obtained from cinnamon oil or cinnamon bark, while synthetic material is produced by chemical synthesis. The selected grade depends on the target application, regulatory requirements, and cost profile.
Q:
What are the main flavor and fragrance applications?

A: It is used to create cinnamon-type flavor and fragrance profiles in food, beverage, personal care, household cleaners, and air fresheners. Its characteristic aldehydic cinnamon note makes it useful in both fine fragrance and functional fragrance formulations.
Q:
What chemical intermediate and antimicrobial uses does CAS 104-55-2 have?

A: Its conjugated aldehyde structure makes it a useful building block in selected fine chemical synthesis. Cinnamaldehyde also shows antimicrobial and antifungal activity, so it is studied or used in food preservation, agrochemical, and antibacterial formulation applications.
Q:
What are the key specifications of industrial or fine chemical grade?

A: Typical specifications include a GC assay of at least 98.0%, appearance as a pale yellow to yellow liquid, density around 1.041-1.050 g/cm3 at 20 C, refractive index near 1.622, and boiling point around 248-252 C.
Q:
How should Cinnamaldehyde CAS 104-55-2 be stored?

A: Keep it tightly closed in a cool, dry, well-ventilated area and protect it from direct sunlight, heat, ignition sources, strong oxidizers, and strong bases. Use appropriate gloves, goggles, protective clothing, and ventilation during bulk handling.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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