pharmaceutical secondary standard; traceable to USP
Synonym(s): 2-Butanone; Ethyl methyl ketone; MEK; Methyl ethyl ketone
Empirical Formula: C4H8O
Formula Weight: 72.11
Linear Formula: C2H5COCH3
MDL Number: MFCD00011648
Boiling Point: 80 °C(lit.)
Melting Point: −87 °C(lit.)
Density: 0.805 g/mL at 25 °C(lit.)
Refractive Index: n20/D 1.379(lit.)
Beilstein Registry Number: 741880
Signal Word: Danger
Hazard statements: H225-H319-H336
Precautionary statements: P210-P261-P305 + P351 + P338
Supplemental Hazard Statements: Repeated exposure may cause skin dryness or cracking.
Hazard Codes (Europe) : F,Xi
Risk Statements (Europe): 11-36-66-67
Safety Statements (Europe): 9-16
WGK Germany: 1