2-Ethoxy-3,4-dihydro-2H-pyran

  • Ethoxydihydropyran
  • 3,4-Dihydro-2-ethoxy-2H-pyran
  • 3,4-Dihydro-2-ethoxypyran
  • 2-Ethoxy-3,4-dihydropyran
Formula
C7H12O2
Structure
Uses
Stabilizer, intermediate.

Registry Numbers and Inventories.
CAS
103-75-3
EC (EINECS/ELINCS)
203-141-8
EC Class
flammable
RTECS
UP8925000
RTECS class
Primary Irritant
UN (DOT)
1993
Beilstein/Gmelin
109855
Beilstein Reference
5-17-03-00196
Swiss Giftliste 1
G-1791
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H12O2
Formula mass
128.17
Melting point, °C
-100
Boiling point, °C
143
Vapor pressure, mmHg
6 (25 C)
Density
0.9712 g/cm3 (20 C)
Solubility in water
Soluble
Refractive index
1.45 (20 C)
Partition coefficient, pKow
0.80
Heat of vaporization
36.6 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Disposal code
1
Stability
No data.
Incompatibilities
May react violently with strong oxidizing agents.

Fire.
Flash Point,°C
24
Fire fighting
Fire Extinguishing Agents Not to Be Used: Water may be ineffective.Fire Extinguishing Agents: Foam, dry chemical, carbon dioxide
Health
1
 
Flammability
2
 
 
Reactivity
1
 

Health.
Poison_Class
5
Exposure effects
   Ingestion
See inhalation.
   Inhalation
Contact with liquid irritates eyes. Also irritates skin on prolonged contact.
   Skin
See inhalation.
   Eyes
See inhalation

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   Skin
Wipe off; wash well with soap and water.
   Eyes
Flush with water for at least 15 min.

Transport.
UN number
1993
Response guide
USCG CHRIS Code
EHP
 
HS Code
2932 99 95