1-Heptyne
[CAS# 628-71-7]

Identification

• Classification: Chemical reagent >> Organic reagent >> Alkyne
• Name: 1-Heptyne
• Molecular Formula: C₇H₁₂
• Molecular Weight: 96.17
• CAS Registry Number: 628-71-7
• EC Number: 211-051-5

Properties

• Density: 0.733
• Melting point: -81 °C
• Boiling point: 99-100 °C
• Refractive index: 1.407-1.409
• Flash point: -2 °C

Safety Data

• Hazard Symbols: F;Xn
• Risk Statements: R11;R36/37/38;R65
• Safety Statements: S16;S26;S33;S36;S62;S9

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Flammable liquids	Flam. Liq.	2	H225
Aspiration hazard	Asp. Tox.	1	H304
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319

• Transport Information: UN 3295