isovaleric acid
 
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IUPAC name :3-methylbutanoic acid
InChI :InChI=1/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7)
InChIKey :GWYFCOCPABKNJV-UHFFFAOYAV
SMILES :CC(C)CC(=O)O
(EINECS) number :207-975-3
cas number :503-74-2
beilstein number :1098522
fema number :3102
coe number :8
jecfa number :259
fl. number :08.008
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 : 1.30
molecular weight : 102.1317000
formula :C5 H10 O2
 
 
fda reg :unspecified h. number :2915.60.0000
organoleptics : 
odor type :cheesy
odor strength :high ,
recommend smelling in a 1.00 % solution or less
odor description :
at 1.00 % in propylene glycol.  
sour stinky feet sweaty
taste description³ :at 50.00 ppm.  
Cheesey, dairy, creamy, fermented, sweet, waxy and berry
substantivity :400  Hour(s)
properties : 
appearence :colorless to pale yellow clear liquid
assay : 99.00 - 100.00 %   
Food Chemicals Codex Listed :Yes
specific gravity :0.92300 - 0.92800 @ 25.00 °C.
pounds per gallon - calc. : 7.680 to 7.722
refractive index :1.40100 - 1.40500 @ 20.00 °C.
melting point : -29.00 °C. @ 760.00 mm Hg
boiling point : 175.00 - 177.00 °C. @ 760.00 mm Hg
logp : 1.16
safety : 
most important hazard(s) : T - Toxic.
  
Oral Toxicity(LD50) : Oral-Rat    2.00  ml/kg    
Dermal Toxicity(LD50) : Skin-Rabbit  310.00  ul/kg    
  
flash point ( Deg. F. ) : 159.00  °F.  TCC  ( 70.56 °C. )
  
recommendation for isovaleric acid usage levels up to :
 not for fragrance use.
  
recommendation for isovaleric acid usage levels up to :
  80.0000 ppm in the flavor.
  
safety links : 
(EINECS) number :207-975-3
rtecs :NY1400000 for 503-74-2
chemidplus :000503742
epa-srs :503-74-2
dtp/nci :62783
  
other : 
 
references : 
jecfa number :259
fl. number :08.008
pubchem :153713
NIST Chemistry WebBook :1848049450
  
reference : Mosciano, Gerard P&F 18, No. 5, 39, (1993)³
synonyms :
isobutyl formic acid
 delphinic acid
 dephinic acid
3-methyl butanoic acid
3-methyl butyric acid
beta-methyl butyric acid
isopentanoic acid
isopropyl acetic acid
isovalerianic acid
isovaleric acid
soluble in :
 alcohol
 chloroform
 ether
 water, 40700 mg/L @ 20C
 water, 1 part to 25 parts water
(odor and/or flavor) used in :
 apple
 banana
 blackberry
 butter
 cheese blue cheese
 cream
 dairy
 fruit
 nut
 passion fruit
 pear
 sherry
 strawberry
natural occurrence in :
apple
arctic bramble
artemisia frigida
banana
barley roasted barley
beer
blackberry
brandy
cajeput
cheese
cider
cinnamon
citronella
citrus fruits
cocoa
coffee
currant
cymbopogon javanensis
cypress
dolphin fat
eucalyptus goniocalyx
fish
geranium
grape
honey
hop
laurel leaves
lavender
data pagelavender oil spike spain @ 0.106%
lemongrass
marjoram sweet
milk
monarda fistulosa
mushroom
niaouli
data pageosmanthus absolute @ trace%
papaya
passion fruit
peach
peanut roasted peanut
pear
peas
peppermint american
persea pubescens
petitgrain lemon petitgrain
pilot whale
potato chip
raspberry fruit
rosemary
rue leaf
rum
seal fat
sherry
soya bean
spearmint
strawberry
tea
thymus mastichina
tobacco
tomato
trassi cooked trassi
valerian root
data pagevalerian root oil CO2 extract china @ 0.21%
vinegar
whiskey



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