# NIOSH Pocket Guide to Chemical Hazards
Methoxyflurane | CAS 76-38-0
CHCl2CF2OCH3 | RTECS KN7820000
Synonyms & Trade Names 2,2-Dichloro-1,1-difluoroethyl methyl ether; 2,2-Dichloro-1,1-difluoro-1-methoxyethane; Methoflurane; Methoxyfluorane; Penthrane | DOT ID & Guide
Exposure Limits | NIOSH REL*: C 2 ppm (13.5 mg/m3) [60-minute] [*Note: REL for exposure to waste anesthetic gas.]
OSHA PEL: none
IDLH N.D. | Conversion 1 ppm = 6.75 mg/m3
Physical Description Colorless liquid with a fruity odor. [inhalation anesthetic]
MW: 165.0 | BP: 220°F | FRZ: -31°F | Sol: Slight
VP: 23 mmHg | IP: ? |  | Sp.Gr(77°F): 1.42
Fl.P: ? | UEL: ? | LEL(176°F): 7% |
Combustible Liquid
Incompatibilities & Reactivities None reported
Measurement Methods None available
Personal Protection & Sanitation Skin: No recommendation Eyes: Prevent eye contact Wash skin: No recommendation Remove: When wet or contaminated Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes; central nervous system depression, analgesia, anesthesia, convulsions, respiratory depression; liver, kidney injury; in animals: reproductive, teratogenic effects
Target Organs Eyes, central nervous system, liver, kidneys, reproductive system
See also: INTRODUCTION