Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Product Description
TRANS-2-HEXENAL (CAS: 6728-26-3), also known as (E)-2-Hexenal or Leaf Aldehyde, is a colorless to pale yellow transparent liquid with a strong green leaf and fruity aroma. It exists naturally in plants and fruits, and is widely used in food flavoring, daily fragrance and organic synthesis.
Molecular Formula & Structure
Molecular Formula: C?H??O; Molecular Weight: ~98.14; IUPAC Name: (2E)-hex-2-enal; SMILES: CCC\C=C\C=O.
Physical & Chemical Properties
- Appearance: Colorless to pale yellow clear liquid, strong green leaf and fruity odor, no visible impurities.
- Key Properties: Melting Point ~-78 °C; Boiling Point 146~149 °C; Density ~0.846 g/mL (25 °C); Flash Point 35~43 °C (Closed Cup); Refractive Index ~1.444-1.446 (n20/D).
- Chemical Traits: Stable under sealed low temperature; insoluble in water, soluble in ethanol and other organic solvents; incompatible with oxidants and alkalis; easily oxidized by air and light.
- Toxicity: Low toxicity, mild skin/eye irritation; GHS signal word "Warning"; hazardous to aquatic organisms at high concentrations.
Synthesis & Storage
- Synthesis: Natural extraction from plants/fruits, or chemical synthesis via hexenoic acid-formic acid reaction or butyraldehyde-vinyl ether reaction, followed by distillation purification.
- Storage: Sealed, stored at 2-8 °C in cool, dry and dark place; separate from oxidants; packed in 25kg plastic drums.
- Safety: Operate in well-ventilated environment with protective gear; keep away from ignition sources; transport UN 1989 3/PG 3; dispose as regulations.
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