methyl acetoacetate
 
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IUPAC name :methyl 3-oxobutanoate
InChI :InChI=1/C5H8O3/c1-4(6)3-5(7)8-2/h3H2,1-2H3
InChIKey :WRQNANDWMGAFTP-UHFFFAOYAM
SMILES :CC(=O)CC(=O)OC
(EINECS) number :203-299-8
eu annex :607-137-00-0
cas number :105-45-3
fl. number :09.634
molar refractivity :27.01 ± 0.3 cm3
parachor :260.8 ± 4.0 cm3
index of refraction :1.399 ± 0.02
surface tension :29.7 ± 3.0 dyne/cm
density :1.039 ± 0.06 g/cm3
polarizability :10.71 ± 0.5 10-24cm3
xlogp : 0.30
molecular weight : 116.1152200
formula :C5 H8 O3
 
 
export tariff code :2915.39.9050
fda reg :unspecified
 

organoleptics :
odor strength :medium
odor description :
at 100.00 %.  
fresh fruity citrus green
substantivity :4  Hour(s)

properties :
appearence :colorless clear liquid
assay : 98.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :1.07300 to 1.07900 @ 25.00 °C.
pounds per gallon - calc. : 8.928 to 8.978
refractive index :1.41500 to 1.42100 @ 20.00 °C.
melting point : -80.00 °C. @ 760.00 mm Hg
boiling point : 169.00 to 171.00 °C. @ 760.00 mm Hg
logp : -0.69

safety :
Oral Toxicity(LD50) : Oral-Rat    2800.00  mg/kg    (BASF, 1978)
Oral-Rat    3000.00  mg/kg    (Smyth & Carpenter, 1948)
Dermal Toxicity(LD50) : Not determined
Maximised Survey-derived Daily Intakes (MSDI-EU) :0.012 (μg/capita/day)
modified Theoretical Added Maximum Daily Intake (mTAMDI) :3700 (μg/person/day)
Threshold of concern :1800 (μg/person/day)
flash point ( Deg. F. ) : 147.00  °F.  TCC  ( 63.89 °C. )
recommendation for methyl acetoacetate usage levels up to :
 not for fragrance use.
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFFA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFFA, 2002i).
Note : mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
 average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0) : 7.0000035.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0) : 5.0000025.00000
Edible ices, including sherbet and sorbet (03.0) : 10.0000050.00000
Processed fruit (04.1) : 7.0000035.00000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2) : --
Confectionery (05.0) : 10.0000050.00000
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0) : 5.0000025.00000
Bakery wares (07.0) : 10.0000050.00000
Meat and meat products, including poultry and game (08.0) : 2.0000010.00000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0) : 2.0000010.00000
Eggs and egg products (10.0) : --
Sweeteners, including honey (11.0) : --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0) : 5.0000025.00000
Foodstuffs intended for particular nutritional uses (13.0) : 10.0000050.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1) : 5.0000025.00000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2) : --
Ready-to-eat savouries (15.0) : 20.00000100.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0) : 5.0000025.00000

safety links :
 
 
(EINECS) number :203-299-8
RTECS :AK5775000 for 105-45-3
chemidplus :000105453
EPA Substance Registry Services :105-45-3
NLM Chemical Carcinogenesis Research Information System :105-45-3
NLM Developmental and Reproductive Toxicity :105-45-3
NLM Env. Mutagen Info. Center :105-45-3
NLM GENetic TOXicology :105-45-3
EPI System :view

other :

references :
fl. number :09.634
pubchem :150848
NIST Chemistry WebBook :3983243641
synonyms :
 acetoacetic acid methyl ester
3-oxobutanoic acid methyl ester
1-methoxybutane-1,3-dione
 methyl 3-oxobutanoate
 methyl 3-oxobutyrate
 methyl acetoacetate
 methyl acetyl acetate
 methyl acetylacetate

soluble in :
 alcohol
 water, 500000 mg/L @ 25C

insoluble in :
 water

(odor and/or flavor) blends with :
 acetaldehyde benzyl 2-methoxyethyl acetal
 acetaldehyde dihexyl acetal
 acetaldehyde methyl hexyl acetal
 allyl tiglate
isoamyl 2-methyl butyrate
alpha-amyl cinnamaldehyde diethyl acetal
 amyl hexanoate
 berry pentadienoate
 buchu mercaptan
 butyl 2-methyl butyrate
 citral diethyl acetal
 citronellal
 citronellyl acetate
 citronellyl butyrate
 citronellyl propionate
 citrus carbaldehyde / methyl anthranilate schiff's base
 cognac heptanone
para-cresyl isobutyrate
beta-cubebene
gamma-damascone
 decanal dimethyl acetal
3-decanone
(E,E,Z)-2,4,7-decatrien-1-al
2,4,7-decatrien-1-al
3-decen-2-one
9-decenoic acid
 dehydronootkatone
 dihydrocitronellyl ethyl ether
 dihydronootkatone
6,8-dimethyl-2-nonanol
2-dodecanone
(Z)-4-dodecen-1-al
 ethyl (E)-2-hexenoate
 ethyl (E)-4-decenoate
 ethyl isobutyrate
 ethyl methyl-para-tolyl glycidate
2-ethyl-4-butanol
(Z)-beta-farnesene
 fir carboxylate
(E)-geranyl acetone
 geranyl isovalerate
 green carboxylate
 green dioxolane
 green hexanal
(E,E)-2,4-heptadien-1-ol
 heptanal cyclic ethylene acetal
 heptyl isobutyrate
 hexanal propylene glycol acetal
(E)-2-hexen-1-al diethyl acetal
2-hexen-1-al diethyl acetal
(Z)-3-hexen-1-yl (E)-2-hexenoate
(Z)-3-hexen-1-yl 2-methyl-2-pentenoate
(E)-2-hexen-1-yl acetate
(Z)-3-hexen-1-yl acetate
2-hexen-1-yl acetate
(Z)-3-hexen-1-yl hexanoate
(Z)-3-hexen-1-yl isovalerate
(Z)-3-hexen-1-yl oxyacetaldehyde
(E)-2-hexen-1-yl propionate
(E)-2-hexen-1-yl valerate
(Z)-3-hexen-1-yl valerate
1-hexen-3-yl acetate
 hexyl butyrate
 hexyl isobutyrate
 hexyl isovalerate
 hexyl pivalate
 hexyl propionate
 ivy carbaldehyde
2,4-ivy carbaldehyde
3,5-ivy carbaldehyde
3,6-ivy carbaldehyde
 lily propanol
(Z)-linalool oxide (pyranoid)
 linalyl acetate
dextro-linalyl acetate
laevo-linalyl acetate
 linalyl formate
 linalyl hexanoate
 melon heptenal propylene glycol acetal
 methyl 2-hexenoate
 methyl 4-pentenoate
(E)-methyl geranate
 methyl heptenone
 methyl valerate
3-methyl valeric acid
alpha-methylene citronellal
 myrtenyl acetate
 nerolidol
 neryl isovalerate
(E,E)-2,6-nonadien-1-al
 nonanal dimethyl acetal
 octanal diethyl acetal
(E)-2-octen-1-ol
 papaya isobutyrate
(E)-2-penten-1-al
4-phenyl-2-butyl acetate
isopropyl isobutyrate
alpha-isopropyl phenyl acetaldehyde
 sorbyl isobutyrate
 tangerine acetate
 terpinyl formate
(Z)-8-tetradecen-1-al
 thiogeraniol
 tiglaldehyde
 tricyclodecyl acetate
2,5,9-trimethyl-4,9-decadien-1-al
 undecanal
(E)-2-undecen-1-al
 woody acetate

(odor and/or flavor) used in :
 citrus
 fruit
 herbal
 lemon
 orange

natural occurrence in :
not found in nature



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