Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Information
Name: Cinnamaldehyde
Alias: 3-Phenylprop-2-enal
CAS No.: 104-55-2
Molecular Formula: C9H8O1
Molecular Weight: 132.16
2. Physical and Chemical Properties
Physical Properties
- Appearance: Pale yellow to amber transparent oily liquid
- Odor: Strong characteristic cinnamon spicy aroma
- Solubility: Insoluble in water; miscible with ethanol, methanol, propylene glycol, ether, vegetable oils; slightly soluble in glycerin
- Boiling Point: 253 °C (760 mmHg)
- Density: 1.048–1.052 g/cm3 (20 °C)
- Refractive Index: 1.619–1.623 (20 °C)
- Hygroscopicity: Non-hygroscopic
Chemical Properties
- Molecular Structure: Aromatic α,β-unsaturated aldehyde, contains benzene ring, conjugated carbon-carbon double bond and aldehyde functional group
- Aldehyde reactivity: Undergoes oxidation, reduction, condensation, addition reactions; easy to oxidize into cinnamic acid when exposed to air
- Antibacterial activity: Inhibits mold, bacteria and fungi, natural food antiseptic component
- Thermal stability: Stable at room temperature; discoloration and polymerization occur under long-term high temperature
- Photostability: Highly sensitive to UV light; long-term illumination deepens color and generates polymer impurities
- Compatibility: Compatible with most flavor essences and oil-soluble cosmetic raw materials; incompatible with strong oxidants, strong alkalis, ammonia and heavy metal salts
3. Main Application Fields
1. Food & Flavor Fragrance (Core Application)
- Spicy flavor raw material for candy, baked goods, beverages, chewing gum and seasoning essences
- Natural food preservative applied in meat, pastry and grain anti-mold treatment
2. Cosmetic & Daily Chemical Raw Material
Fragrance additive for soap, body wash, perfume and oral care products; mild antibacterial auxiliary agent
3. Pharmaceutical Intermediate
Synthetic building block for anti-fungal, anti-inflammatory and cardiovascular drug intermediates
4. Agricultural Biological Agent
Natural plant-derived insect repellent and bacteriostatic agent for crop preservation
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 104-55-2 |
| Molecular Formula | C9H8O1 |
| Appearance | Light yellow oily liquid |
| GC Purity | Flavor Grade ≥98.0%; Reference Standard ≥99.5% |
| Water Content (KF) | ≤0.10% |
| Refractive Index (20 °C) | 1.619–1.623 |
| Heavy Metals (Pb) | ≤10 ppm |
| Packaging | 25L / 200L amber sealed steel drum |
| Storage Condition | Hermetic cool dark warehouse below 25 °C; segregated from air, oxidants and alkaline substances |
| Transportation Requirement | Flammable aromatic aldehyde liquid, leak-proof light-resistant sealed packaging |
| Shelf Life | 24 months under nitrogen-filled sealed packaging |
Safety Warning
Mild irritant liquid. Vapor irritates eyes, respiratory tract and skin; long-term contact causes skin allergy. All operations must be carried out in ventilated fume hood with chemical-resistant gloves and safety goggles. Keep away from open flames and heat sources due to flammability. Avoid long-term air exposure to prevent oxidative deterioration. Waste liquid belongs to organic flammable hazardous waste and requires professional centralized disposal.
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