(E)-3-phenylprop-2-enal
C9H8O
Consulting for (E)-3-phenylprop-2-enal
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Identification
- CAS Number
- 104-55-2
- EC Number
- 203-213-9
- UN Number
- Index Number
- 606-155-00-6
- PubChem CID
- 637511
Physical-chemical properties
- Molecular Formula
- C9H8O
- Molar Mass
- 132.16 g/mol
- IUPAC Name
- (E)-3-phenylprop-2-enal
Chemical Identifiers
- InChI
- InChI=1S/C9H8O/c10-8-4-7-9-5-2-1-3-6-9/h1-8H/b7-4+
- InChI Key
- KJPRLNWUNMBNBZ-QPJJXVBHSA-N
Overview
(E)-3-phenylprop-2-enal (CAS 104-55-2) is an aromatic aldehyde compound with distinctive conjugated structure and characteristic fragrance properties. This organic compound, also known as cinnamaldehyde, represents a significant aromatic aldehyde in industrial chemistry with the molecular formula C9H8O and a molecular weight of 132.16 g/mol. The substance features a phenyl ring connected to a propenal chain through a double bond in the E-configuration, creating a conjugated system that contributes to its unique chemical and physical properties. As an unsaturated aldehyde, it exhibits both the reactivity of the carbonyl group and the alkene functionality. From a safety perspective, (E)-3-phenylprop-2-enal is classified as Skin Sens. 1A under GHS regulations, indicating its potential to cause skin sensitization through dermal contact. The compound carries a Warning signal word and displays the GHS07 pictogram, requiring appropriate handling procedures including protective equipment and adequate ventilation. Unlike more hazardous substances such as tetrachlorosilane, this compound does not require special transport classification under ADR regulations. The primary industrial applications include its use as a flavoring agent in food industry formulations, as a fragrance component in cosmetic and personal care products, and as an intermediate in organic synthesis. Its distinctive aromatic profile makes it valuable in creating complex scent compositions, while its reactive aldehyde group enables participation in various chemical transformations for specialty chemical manufacturing. OYSI maintains reliable European distribution capabilities for (E)-3-phenylprop-2-enal, ensuring consistent supply chain support for industrial customers across multiple sectors requiring this specialized aromatic aldehyde compound.
Safety & Classification
Skin Sens. 1A
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
May cause an allergic skin reaction.
Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).
First Aid Measures
Skin Contact
Measures if substance contacts the skin
First Aid Actions
- +P302IF ON SKIN:
- +P352Wash with plenty of water.
- +P361Take off immediately all contaminated clothing.
- +P313Get medical advice/attention.
Related hazard statements:
General Measures
Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)
First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.
Frequently Asked Questions
What is (E)-3-phenylprop-2-enal?
(E)-3-phenylprop-2-enal is an organic compound with the molecular formula C9H8O and a molecular weight of 132.16 g/mol. Also known as cinnamaldehyde, it belongs to the aldehyde family and features a phenyl group attached to a propenal chain. This compound is characterized by its distinctive aromatic structure and is classified as a skin sensitizer (Skin Sens. 1A) under GHS regulations, requiring careful handling due to its potential to cause allergic skin reactions.
What are the physicochemical properties of (E)-3-phenylprop-2-enal?
(E)-3-phenylprop-2-enal is a pale yellow to yellowish liquid at room temperature with a characteristic sweet, cinnamon-like odor. It has a boiling point of approximately 248°C and a density of about 1.05 g/cm³. The compound is slightly soluble in water but readily soluble in organic solvents such as ethanol, ether, and oils. It exhibits typical aldehyde reactivity and can undergo various chemical transformations including oxidation and condensation reactions.
What is (E)-3-phenylprop-2-enal used for?
(E)-3-phenylprop-2-enal is primarily used in the fragrance and flavor industry due to its distinctive cinnamon-like aroma. It serves as a key ingredient in perfumes, cosmetics, soaps, and food flavorings. Additionally, it finds applications in the synthesis of pharmaceuticals and other fine chemicals as an intermediate compound. The substance is also used in the production of various aromatic compounds and as a starting material for organic synthesis reactions in chemical manufacturing.
How to handle (E)-3-phenylprop-2-enal safely?
(E)-3-phenylprop-2-enal must be handled with appropriate personal protective equipment due to its skin sensitizing properties (Skin Sens. 1A). Wear protective gloves, safety goggles, and protective clothing to prevent skin and eye contact. Ensure adequate ventilation in work areas and avoid inhalation of vapors. Handle in well-ventilated areas or under fume hoods. The GHS07 pictogram and 'Warning' signal word indicate moderate hazard requiring standard precautionary measures for chemical handling.
How to store (E)-3-phenylprop-2-enal correctly?
(E)-3-phenylprop-2-enal should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep away from strong oxidizing agents and acids to prevent unwanted reactions. Store in original containers made of compatible materials, typically glass or suitable plastic. Maintain storage temperatures below 25°C when possible and ensure containers are properly labeled. Keep away from food, beverages, and animal feeding stuffs to prevent contamination.
What to do in case of contact with (E)-3-phenylprop-2-enal?
In case of skin contact with (E)-3-phenylprop-2-enal, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with plenty of clean water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air and seek medical advice if symptoms persist. If swallowed, rinse mouth with water and seek immediate medical attention. Do not induce vomiting unless directed by medical personnel.
How to dispose of (E)-3-phenylprop-2-enal appropriately?
(E)-3-phenylprop-2-enal waste must be disposed of in accordance with local, national, and international regulations. The substance should not be released into drains, waterways, or the environment. Collect waste in suitable containers and arrange disposal through licensed waste management companies specialized in chemical waste treatment. Consider recycling or recovery options where available. Empty containers should be thoroughly cleaned and disposed of according to local regulations for contaminated packaging materials.
How to transport (E)-3-phenylprop-2-enal?
(E)-3-phenylprop-2-enal can be transported using standard chemical transportation methods as it does not fall under specific ADR dangerous goods classifications based on available data. However, proper packaging in suitable containers is essential to prevent leakage and contamination. Ensure packages are properly labeled with substance identification and hazard information. Follow general chemical transportation guidelines including proper documentation, secure loading, and compliance with carrier-specific requirements for chemical substances.
Is (E)-3-phenylprop-2-enal subject to specific regulations?
(E)-3-phenylprop-2-enal is subject to REACH regulation as a chemical substance manufactured or imported in the EU. It must comply with CLP regulation requirements for classification, labeling, and packaging as a skin sensitizer. The substance is not currently listed as a SVHC (Substance of Very High Concern). Users must follow occupational safety regulations and may need to comply with specific industry regulations depending on application, particularly in food, cosmetics, or fragrance industries where additional safety assessments may be required.
Where to buy (E)-3-phenylprop-2-enal in Europe?
(E)-3-phenylprop-2-enal is available through OYSI, a trusted European distributor of specialty chemicals. OYSI provides high-quality chemical products with proper documentation and regulatory compliance for industrial and professional users across Europe. As an established chemical distributor, OYSI ensures reliable supply chains and technical support for customers requiring this substance for fragrance, flavor, or chemical synthesis applications. Contact OYSI directly for product availability, specifications, and delivery options in your region.
Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.