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Methyl Ethyl Ketone

CAS Number

78-93-3

Synonym

Butanone; 2-butanone; 3-butanone; Caswell No. 569; Meetco; MEK; Methyl acetone; AI3-07540; 2-oxobutane; EPA Pesticide Code: 044103

Occurrence/Use

Solvent, denaturing agent, cleaning agent; component of paints, lacquers, varnishes, glues, resins; production of plastics, textiles, paraffin wax; component of automobile and tobacco smoke

Methyl Ethyl Ketone

Cancer Potency Information

Latest Criteria: 
Acute Reference Exposure Levels

Air

Acute RELs

Acute REL (μg/m3): 
13000
Species: 
Human
Acute REL Toxicologic Endpoint: 
Respiratory and eye irritation
Acute REL Target Organs: 
Respiratory system, eyes
Severity: 
Mild
Last Acute REL Revision: 
1999
Acute Reference Exposure Levels Comments: