methyl ethyl ketone
 
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IUPAC name :butan-2-one
InChI :InChI=1/C4H8O/c1-3-4(2)5/h3H2,1-2H3
InChIKey :ZWEHNKRNPOVVGH-UHFFFAOYAW
SMILES :CCC(=O)C
(EINECS) number :201-159-0
eu annex :606-002-00-3
cas number :78-93-3
fema number :2170
coe number :753
jecfa number :278
fl. number :07.053
molar refractivity :20.60 ± 0.3 cm3
parachor :196.3 ± 4.0 cm3
index of refraction :1.367 ± 0.02
surface tension :21.0 ± 3.0 dyne/cm
density :0.786 ± 0.06 g/cm3
polarizability :8.17 ± 0.5 10-24cm3
xlogp : 0.40
molecular weight : 72.1057200
formula :C4 H8 O
BioActivity Analysis :17389672
 
 
fda reg :172.515
172.859
175.105
175.320
177.1200
h. number :2914.12.00.00
organoleptics : 
odor type :ethereal
odor strength :high ,
recommend smelling in a 1.00 % solution or less
odor description :
at 1.00 % in dipropylene glycol.  
acetone-like ethereal fruity camphor
taste description³ :at 5.00 ppm.  
Chamical-like and slightly fruity green
properties : 
appearence :colorless clear liquid
assay : 99.00 - 100.00 %   
Food Chemicals Codex Listed :Yes
specific gravity :0.80100 - 0.80300 @ 25.00 °C.
pounds per gallon - calc. : 6.665 to 6.682
refractive index :1.37700 - 1.38000 @ 20.00 °C.
melting point : -85.00 - -87.00 °C. @ 760.00 mm Hg
boiling point : 78.60 - 80.00 °C. @ 760.00 mm Hg
acid value : 2.00  max.  KOH/g
logp : 0.29
safety : 
most important hazard(s) : Xi - Irritant
  
Oral Toxicity(LD50) : Oral-Rat   [sex: M]  5490.00  mg/kg    (Smyth et al., 1962)
Oral-Rat    2730.00  mg/kg    (Kimura et al., 1971a)
Oral-Rat    3980.00  mg/kg    (Union Carbide Corp., 1956)
Oral-Rat   [sex: F]  5525.00  mg/kg    (Pozzani et al., 1959)
Oral-Mouse   [sex: M]  3137.00  mg/kg    (Zakhari et al., 1977)
Oral-Mouse   [sex: M]  4050.00  mg/kg    (Tanii et al., 1986)
Dermal Toxicity(LD50) : Skin-Rabbit  6840.00  mg/kg  SHELL*  MSDS-5390-4
Maximised Survey-derived Daily Intakes (MSDI) :96.00 (μg/capita/day)
  
flash point ( Deg. F. ) : 26.00  °F.  TCC  ( -3.33 °C. )
  
recommendation for methyl ethyl ketone usage levels up to :
  0.5000 % in the fragrance concentrate.
  
recommendation for methyl ethyl ketone usage levels up to :
  270.0000 ppm in the flavor.
  
safety links : 
(EINECS) number :201-159-0
rtecs :EL6475000 for 78-93-3
chemidplus :000078933
epa-srs :78-93-3
  
other : 
 
references : 
jecfa number :278
fl. number :07.053
pubchem :149533
NIST Chemistry WebBook :677523036
  
reference : Mosciano, Gerard P&F 20, No. 1, 31, (1995)³
synonyms :
 butan-2-one
2-oxobutane
2-butanone
 ethyl methyl ketone
 ketone C-4
 mek
 methyl acetone
 methyl ethyl ketone
soluble in :
 alcohol
 fixed oils
 water, 223000 mg/L @ 25C
insoluble in :
 water
(odor and/or flavor) used in :
 banana
 bread white bread
 carrot
 cheese cheddar cheese
 cheese swiss cheese
 coffee
 cream
 dairy
 fish
 grape
 tea black tea
 tomato
 yogurt
natural occurrence in :
apple juice
bread white bread
butter
carrot
cheese cheddar cheese
cheese swiss cheese
coffee
fish
potato chip
tea black tea
tomato
yogurt



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