Ethynylmethylvinylcarbinol

  • 2-Vinyl-3-butyn-2-ol
  • 3-Methyl-pent-4-en-1-yn-3-ol
  • 3-Methyl-1-penten-4-yn-3-ol
  • 3-Methyl-4-penten-1-yn-3-ol
Formula
C6H8O
Structure
Description
Reddish liquid. Characteristic odor.

Registry Numbers and Inventories.
CAS
3230-69-1
EC (EINECS/ELINCS)
221-770-6
RTECS
SB4950000
RTECS class
Drug
Beilstein/Gmelin
1740552
Beilstein Reference
4-01-00-02309
Swiss Giftliste 1
G-8248
Korea ECL
Listed

Properties.
Formula
C6H8O
Formula mass
96.12
Boiling point, °C
80 - 81 (0.1 torr)
Density
0.8665 g/cm3 (20 C)
Refractive index
1.4491 (14 C)
pKa/pKb
12.53 (pKa)

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, organic peroxides.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
65
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Combustible Liquid. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Poison_Class
4
Exposure effects
   Ingestion
Harmful if swallowed. May cause irritation of the digestive tract.
   Inhalation
Causes respiratory tract irritation. May be harmful if inhaled.
   Skin
Causes skin irritation. May be harmful if absorbed through the skin.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.