# NIOSH Pocket Guide to Chemical Hazards
Methyl Cellosolve® acetate | CAS 110-49-6
CH3COOCH2CH2OCH3 | RTECS KL5950000
Synonyms & Trade Names EGMEA, Ethylene glycol monomethyl ether acetate, Glycol monomethyl ether acetate, 2-Methoxyethyl acetate | DOT ID & Guide 1189 129
Exposure Limits | NIOSH REL: TWA 0.1 ppm (0.5 mg/m3) [skin]
OSHA PEL: TWA 25 ppm (120 mg/m3) [skin]
IDLH 200 ppm | Conversion 1 ppm = 4.83 mg/m3
Physical Description Colorless liquid with a mild, ether-like odor.
MW: 118.1 | BP: 293°F | FRZ: -85°F | Sol: Miscible
VP: 2 mmHg | IP: ? |  | Sp.Gr: 1.01
Fl.P: 120°F | UEL: 8.2% | LEL: 1.7% |
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities Nitrates; strong oxidizers, alkalis & acids
Measurement Methods NIOSH 1451; OSHA 53, 79
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH Up to 1 ppm: (APF = 10) Any supplied-air respirator* Up to 2.5 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode* Up to 5 ppm: (APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 100 ppm: (APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode* Up to 200 ppm: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, nose, throat; kidney, brain damage; in animals: narcosis; reproductive, teratogenic effects
Target Organs Eyes, respiratory system, kidneys, brain, central nervous system, peripheral nervous system, reproductive system, hematopoietic system
See also: INTRODUCTION