3-Methyl-1-penten-4-yn-3-ol
[CAS# 3230-69-1]

Identification

• Name: 3-Methyl-1-penten-4-yn-3-ol
• Synonyms: Ethynyl methyl vinyl carbinol
• Molecular Formula: C₆H₈O
• Molecular Weight: 96.13
• CAS Registry Number: 3230-69-1
• EC Number: 221-770-6

Properties

• Density: 0.89
• Boiling point: 98 °C (50 mmHg)
• Refractive index: 1.4445-1.4465
• Flash point: 65 °C

Safety Data

• Hazard Symbols: Xn
• Risk Statements: R22;R36/37/38
• Safety Statements: S26;S37/39

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Flammable liquids	Flam. Liq.	3	H226
Acute toxicity	Acute Tox.	4	H312
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H332
Skin corrosion	Skin Corr.	1A	H314
Serious eye damage	Eye Dam.	1	H318
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin corrosion	Skin Corr.	1B	H314

• Transport Information: UN 1760