2-methyl butyric acid
 
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IUPAC name :2-methylbutanoic acid
InChI :InChI=1/C5H10O2/c1-3-4(2)5(6)7/h4H,3H2,1-2H3,(H,6,7)/f/h6H
InChIKey :WLAMNBDJUVNPJU-BRMMOCHJCC
SMILES :CCC(C)C(=O)O
(EINECS) number :204-145-2
cas number :116-53-0
beilstein number :1098537
fema number :2695
coe number :2002
jecfa number :255
fl. number :08.046
molar refractivity :26.73 ± 0.3 cm3
parachor :250.2 ± 4.0 cm3
index of refraction :1.418 ± 0.02
surface tension :30.9 ± 3.0 dyne/cm
density :0.962 ± 0.06 g/cm3
polarizability :10.59 ± 0.5 10-24cm3
xlogp : 1.00
molecular weight : 102.1317000
formula :C5 H10 O2
BioActivity Analysis :73207
 
 
fda reg :172.515 h. number :2915.60.0000
organoleptics : 
odor type :acidic
odor strength :medium ,
recommend smelling in a 10.00 % solution or less
odor description :
at 10.00 % in propylene glycol.  
pungent acid roquefort cheese
taste description³ :at 10.00 ppm.  
Fruity, dirty, acidic with a dairy buttery and cheesey nuance
substantivity :244  Hour(s)
properties : 
appearence :colorless to pale yellow clear liquid
assay : 98.00 - 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.92900 - 0.93700 @ 25.00 °C.
pounds per gallon - calc. : 7.730 to 7.797
refractive index :1.40100 - 1.40800 @ 20.00 °C.
boiling point : 176.00 - 177.00 °C. @ 760.00 mm Hg
logp : 1.18
safety : 
most important hazard(s) : C - Corrosive.
  
Oral Toxicity(LD50) : Oral-Rat    3200.00  mg/kg  ATDAEI  1,171,1992
Dermal Toxicity(LD50) : Skin-Rabbit  10.00  ml/kg  ATDAEI  1,171,1992
  
flash point ( Deg. F. ) : 165.00  °F.  TCC  ( 73.89 °C. )
  
recommendation for 2-methyl butyric acid usage levels up to :
  0.0200 % in the fragrance concentrate.
  
recommendation for 2-methyl butyric acid usage levels up to :
  3.0000 ppm in the flavor.
  
safety links : 
(EINECS) number :204-145-2
rtecs :EK7897000 for 116-53-0
chemidplus :000116530
epa-srs :116-53-0
dtp/nci :7304
  
other : 
 
references : 
pubchem :151452
NIST Chemistry WebBook :3155133172
  
reference : Mosciano, Gerard P&F 16, No. 2, 49, (1991)³
synonyms :
 ethyl methyl acetic acid
2-methyl butanoic acid
(1)-2-methyl butyric acid
2-methyl butyric acid
alpha-methyl butyric acid
 methyl ethyl acetic acid
soluble in :
 alcohol
 propylene glycol
 water, 45000 mg/L @ 20C
insoluble in :
 water
(odor and/or flavor) used in :
 angelica
 butter
 cheese roguefort cheese
 chocolate cocoa
 cranberry
 cream
 dairy
 fruit
 huckleberry bilberry
 pineapple
 raspberry
 strawberry
natural occurrence in :
angelica root
beer
bilberry
cocoa
coffee
cranberry
raspberry
rum
strawberry



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