3-Methylenepentane
[CAS# 760-21-4]

Identification

• Classification: Organic raw materials >> Hydrocarbon compounds and their derivatives >> Acyclic hydrocarbon
• Name: 3-Methylenepentane
• Synonyms: 1,1-Diethylethene; 1,1-Diethylethylene; 2-Ethyl-1-butene; NSC 74120
• Molecular Formula: C₆H₁₂
• Molecular Weight: 84.16
• CAS Registry Number: 760-21-4
• EC Number: 212-078-5

Properties

• Density: 1.028 g/cm³ (21 ºC)^*
• Melting point: -131.5 ºC^**
• Boiling point: 277-280 ºC^*
• Refractive index: 1.606 (589.3 nm 21 ºC)^*
• Flash point: -26.1±0.0 ºC, Calc.^***

^* Sabatier, Paul; Compt. rend. 1912, V154, P1771-3.

^** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^*** Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Flammable liquids	Flam. Liq.	2	H225
Skin sensitization	Skin Sens.	1	H317
Aspiration hazard	Asp. Tox.	1	H304
Specific target organ toxicity - single exposure	STOT SE	3	H336
Eye irritation	Eye Irrit.	2	H319
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Skin irritation	Skin Irrit.	2	H315