isoamyl pyruvate
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IUPAC name :3-methylbutyl 2-oxopropanoate
InChI :InChI=1/C8H14O3/c1-6(2)4-5-11-8(10)7(3)9/h6H,4-5H2,1-3H3
InChIKey :LBKWGGFVEDOVEP-UHFFFAOYAA
SMILES :CC(C)CCOC(=O)C(=O)C
cas number :7779-72-8
(EINECS) number :231-934-9
fema number :2083
coe number :431
jecfa number :939
fl. number :09.443
molar refractivity :40.87 ± 0.3 cm3
parachor :377.6 ± 4.0 cm3
index of refraction :1.419 ± 0.02
surface tension :29.8 ± 3.0 dyne/cm
density :0.979 ± 0.06 g/cm3
polarizability :16.20 ± 0.5 10-24cm3
XlogP : 1.70
XlogP3-AA : 1.70
molecular weight : 158.1949600 (IUPAC)
formula :C8 H14 O3
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :172.515

Suppliers :
Nanjing :isopentyl pyruvate
Penta :isoamyl pyruvate
Sigma-Aldrich-SAFC :Isoamyl pyruvate
≥97%

organoleptics :
odor type :balsamic
odor strength :medium
odor description :
at 100.00 %.  
caramellic balsamic rummy arrack fruity

properties :
appearence :colorless to pale yellow clear liquid
assay : 97.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.97200 to 0.98000 @ 25.00 °C.
pounds per gallon - calc. : 8.088 to 8.155
refractive index :1.41700 to 1.42400 @ 20.00 °C.
boiling point : 185.00 °C. @ 760.00 mm Hg
boiling point : 86.00 °C. @ 14.00 mm Hg
acid value : 2.00  max.  KOH/g
flash point : 169.00  °F.  TCC  ( 76.11 °C. )
logP (o/w) : 1.46

safety :
Oral Toxicity(LD50) :
  Not determined
Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Not determined
 

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :0.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA) :0.00 (μg/capita/day)
Structure Class :I
 
recommendation for isoamyl pyruvate usage levels up to :
  1.0000 % in the fragrance concentrate.
recommendation for isoamyl pyruvate usage levels up to :
  15.0000 ppm in the flavor.

safety references :
European Food Safety Athority(efsa) :Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
EPI System :view
Canada Domestic Sub. List :Yes
 
WGK Germany :3
 
 
 
 3-methylbutyl 2-oxopropanoate
(EINECS) number :231-934-9
chemidplus :007779728
EPA Substance Registry Services :7779-72-8

references :
 3-methylbutyl 2-oxopropanoate
fl. number :09.443
jecfa number :939
pubchem :204211

other :
FDA Everything Added to Food in the United States (EAFUS)View
synonyms :
3-methyl butyl 2-oxopropanoate
3-methylbutyl 2-oxopropanoate
isopentyl pyruvate
2-oxo-propanoic acid 3-methyl butyl ester
 pyruvic acid isopentyl ester

soluble in :
 alcohol

insoluble in :
 water

(odor and/or flavor) blends with :
 acetal 318
 acetoin
1-acetyl cyclohexyl acetate
2-acetyl furan
 acetyl propionyl
3-acetyl-2,5-dimethyl furan
2-acetyl-3,4,5,6-tetrahydropyridine
2-acetyl-3,5(or 6)-dimethyl pyrazine
 allyl 2-furoate
 allyl hexanoate
 allyl phenyl acetate
isoamyl 3-(2-furan) propionate
 amyl angelate
isoamyl angelate
alpha-amyl cinnamaldehyde
para-anisyl formate
 benzaldehyde / methyl anthranilate schiff's base
 benzyl acetate
 benzyl acetoacetate
 benzyl cinnamate
 benzyl disulfide
 benzyl formate
 berry hexanoate
 berry pentadienoate
isobutyl anthranilate
isobutyl butyrate
 butyl formate
isobutyl furyl propionate
 butyl levulinate
2-butyl thiophene
 butyl undecylenate
2-oxobutyric acid
gamma-butyrolactone
 caramel dione
 caramel furanone
 caramel pentadione
 chamomile isobutyrate
 chamomile propionate
 chamomile valerate
 cinnamyl formate
 citronellyl butyrate
 citronellyl hexanoate
 citronellyl isobutyrate
 citronellyl propionate
(E)-citronellyl tiglate
 clary propyl acetate
 cyclohexanone diethyl acetal
 cyclohexyl acetic acid
(E)-beta-damascone
(Z)-beta-damascone
beta-damascone
2-decalinyl acetate
 decyl propionate
 diacetyl
2,5-diethyl tetrahydrofuran
2,4-difurfuryl furan
 dihydrojasmone
alpha,alpha-dimethyl anisyl acetone
 dimethyl benzyl carbinyl acetate
2,3-dimethyl pyrazine
S-(2,5-dimethyl-3-furyl) ethane thioate
(E+Z)-4,8-dimethyl-3,7-nonadien-2-one
 eriocephalus punctulatus oil
 ethyl (E)-crotonate
 ethyl 2-furoate
 ethyl 2-hydroxy-2-methyl butyrate
 ethyl 2-methyl-2-pentenoate
 ethyl 4-pentenoate
 ethyl acetate
 ethyl cyclopentenolone
 ethyl heptanoate
 ethyl hydrocinnamate
 ethyl levulinate
 ethyl maltol
 ethyl nonanoate
4-ethyl octanoic acid
 ethyl propionate
 ethyl pyruvate
(E)-ethyl tiglate
 ethyl vanillin
5-ethyl-2,3,4,5-tetramethyl-2-cyclohexen-1-one
5-ethyl-3,4,5,6-tetramethyl cyclohexen-2-one
 fenugreek absolute
 fruity carboxylate
 furfuryl acetone
 furfuryl alcohol
 furfuryl octanoate
 furfuryl valerate
 geraniol
 geranyl crotonate
 geranyl methyl tiglate
gamma-heptalactone
2-heptanol
 heptyl acetate
 heptyl isobutyrate
3,4-hexane dione
3-hexanone
(E)-2-hexen-1-yl formate
(Z)-3-hexen-1-yl isovalerate
(E)-2-hexen-1-yl phenyl acetate
1-hexen-3-ol
1-hexen-3-yl acetate
 hexoxyacetaldehyde dimethyl acetal
2-hexyl-4-acetoxytetrahydrofuran
5-hydroxymethyl furfural
 immortelle absolute
 levulinic acid
 linalyl propionate
 maltol
 maltyl propionate
 mango furanone
 maple furanone
 maple lactone
 menthadienyl formate
 menthone lactone
3-mercaptohexyl acetate
 mesitene lactone
 methoxymelonal
 methyl (Z)-3-hexenoate
 methyl 4-phenyl butyrate
 methyl alpha-ionone
 methyl benzyl acetate (mixed ortho-,meta-,para-)
3-methyl butyl 2-furyl butyrate
 methyl cyclogeranate
 methyl cyclopentenolone
 methyl decanoate
5-methyl furfural
alpha-isomethyl ionone (90% min.)
 methyl ionyl acetate
 methyl isobutyrate
 methyl propionate
 methyl tiglate
4-methyl-2,6-dimethoxyphenol
(E)-7-methyl-3-octen-2-one
3-nonanon-1-yl acetate
 nutty cyclohexenone
 orris root concrete
 peanut oxazole
2-pentanoyl furan
 petitgrain lemon oil
 phenethyl isobutyrate
 phenethyl isovalerate
1-phenyl propyl butyrate
2-phenyl propyl butyrate
2-phenyl propyl isobutyrate
4-phenyl-3-buten-2-ol
2-phenyl-4-pentenal
 prenyl formate
isopropyl benzoate
 propyl formate
 pyruvaldehyde
 rhubarb pyran
 rose undecene
 rosefuran
 shoyu furanone
 strawberry furanone
 strawberry furanone acetate
 terpinyl valerate
 tetrahydrofurfuryl acetate
 tetrahydrofurfuryl alcohol
 tetrahydroionyl acetate
2-thiophene thiol
(E)-tiglic acid
 toffee furanone
4-(para-tolyl)-2-butanone
 tonka bean absolute
 tonka bean resinoid
 tropical ionone
(E,E)-2,4-undecadien-1-al
2,4-undecadien-1-al
isovaleraldehyde propylene glycol acetal
 vanilla oleoresin
 vanillyl isobutyrate

(odor and/or flavor) used in :
 arrack
 balsam
 rum

natural occurrence in :
not found in nature



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