Cycloheptatriene
[CAS# 544-25-2]

Identification

• Classification: Organic raw materials >> Hydrocarbon compounds and their derivatives >> Cyclic hydrocarbon
• Name: Cycloheptatriene
• Synonyms: 1,3,5-Cycloheptatriene; CHT; Tropilidene
• Molecular Formula: C₇H₈
• Molecular Weight: 92.14
• CAS Registry Number: 544-25-2
• EC Number: 208-866-3

Properties

• Density: 0.888
• Melting point: -79.5 ºC
• Boiling point: 116-117 ºC
• Refractive index: 1.519
• Flash point: 80 ºF
• Water solubility: insoluble

Safety Data

• Hazard Symbols: F;T
• Risk Codes: R11;R25;R36/37/38;R65
• Safety Description: S16;S26;S36/37/39;S45;S62

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Flammable liquids	Flam. Liq.	2	H225
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	3	H311
Acute toxicity	Acute Tox.	3	H301
Specific target organ toxicity - single exposure	STOT SE	3	H335
Aspiration hazard	Asp. Tox.	1	H304
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Skin sensitization	Skin Sens.	1	H317
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410

• Transport Information: UN 2603