Chemical Name: Cycloheptatriene
IUPAC NAME: Cyclohepta-1,3,5-triene
CAS No.: 544-25-2
EINECS: 208-866-3
RTECS: GU3675000
RTECS Class: Mutagen
Molecular Formula: C₇H₈
Molecular Weight: 92.14 g/mol
Melting Point: -79.5°C
Density: 0.885 g/cm³ 
Flash Point: 26.7 °C
Boiling Point: 116.5 °C at 760 mmHg 
Following is the structure of 1,3,5-Cycloheptatriene (544-25-2):

Product Categories about 1,3,5-Cycloheptatriene (544-25-2) are Alkanes;Cyclic;Organic Building Blocks
The chemical synonymous of 1,3,5-Cycloheptatriene (544-25-2) are Tropilidene;1，3，5-Cycioheptatriene;1,3,5-Cycloheptatriene;Cht;Cycloheptatriene;Cyclohepta-1,3,5-triene;Cycloheptatrien;Tropiliden

 1,3,5-Cycloheptatriene (544-25-2) is a colourless liquid that has been of recurring theoretical interest in organic chemistry. It is widely used as a ligand in organometallic chemistry and as a building block in organic synthesis.

Poison by ingestion and skin contact. Mutation data reported. A very dangerous fire hazard when exposed to heat, flame, or oxidizers. Potentially violent reaction with nitrogen monoxide. When heated to decomposition it emits acrid smoke and fumes.
Hazard Codes:
T: Toxic
F: Flammable
Risk Statements about 1,3,5-Cycloheptatriene (544-25-2):
R11 Highly flammable.
R25 Toxic if swallowed.
R65 Harmful: may cause lung damage if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements about 1,3,5-Cycloheptatriene (544-25-2):
S16 Keep away from sources of ignition.
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S62 If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
Attentions:
1. Storage: Keep away from sources of ignition. Store in a tightly closed container.
2. Handling: Avoid ingestion and inhalation. Avoid contact with eyes, skin, and clothing. Avoid contact with heat, sparks and flame. Wash thoroughly after handling. Use with adequate ventilation. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

DOT Classification:  3; Label: Flammable Liquid, Poison

 Cycloheptatriene (CHT) is an organic compound with the formula C7H8. This colourless liquid has been of recurring theoretical interest in organic chemistry. It is a ligand in organometallic chemistry and as a building block in organic synthesis. Cycloheptatriene is not aromatic, as reflected by the nonplanarity of the methylene bridge (-CH2-) with respect to the other atoms.