methyl isobutyrate
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IUPAC name :methyl 2-methylpropanoate
InChI :InChI=1/C5H10O2/c1-4(2)5(6)7-3/h4H,1-3H3
InChIKey :BHIWKHZACMWKOJ-UHFFFAOYAO
SMILES :CC(C)C(=O)OC
cas number :547-63-7
(EINECS) number :208-929-5
beilstein number :1740720
fema number :2694
coe number :287
jecfa number :185
fl. number :09.412
molar refractivity :26.94 ± 0.3 cm3
parachor :253.1 ± 4.0 cm3
index of refraction :1.385 ± 0.02
surface tension :23.5 ± 3.0 dyne/cm
density :0.888 ± 0.06 g/cm3
polarizability :10.68 ± 0.5 10-24cm3
XlogP : 0.80
molecular weight : 102.1317000
formula :C5 H10 O2
NMR Predictor :Predict
 
 
export tariff code :2915.60.0000
fda reg :172.515

Suppliers :
Berje :Methyl iso Butyrate
Cargill - Alfrebro :METHYL ISOBUTYRATE
natural, Kosher
Fleurchem :methyl isobutyrate
natural
Fontarome :METHYL ISOBUTYRATE
Odor:  Very diffusive
Frutarom :METHYL ISOBUTYRATE
≥99.00%, NI, Kosher
Odor:  Apple, Floral, Fruity, Pineapple, Sweet
Grau Aromatics :METHYL-iso-BUTYRATE
NI, Kosher
Penta :methyl isobutyrate
Penta :methyl isobutyrate
natural
Sigma-Aldrich-SAFC :Methyl isobutyrate
≥99%, Kosher
Odor:  floral; fruity

organoleptics :
odor type :fruity
odor strength :medium ,
recommend smelling in a 10.00 % solution or less
odor description :
at 10.00 % in dipropylene glycol.  
fruity floral apple pineapple

properties :
appearence :colorless clear liquid
assay : 99.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.88400 to 0.88800 @ 25.00 °C.
pounds per gallon - calc. : 7.356 to 7.389
refractive index :1.38200 to 1.38600 @ 20.00 °C.
melting point : -85.00 to -84.00 °C. @ 760.00 mm Hg
boiling point : 91.00 to 93.00 °C. @ 760.00 mm Hg
boiling point : 38.00 to 39.00 °C. @ 100.00 mm Hg
acid value : 1.00  max.  KOH/g
vapor pressure :49.30000 mm/Hg @ 25.00 °C.
vapor density :3.5 ( Air = 1 )
flash point : 38.00  °F.  TCC  ( 3.33 °C. )
logP (o/w) : 1.28

safety :
most important hazard(s) :Xi - Irritant
  R 11 - Highly flammable.
R 38 - Irritating to skin.
S 02 - Keep out of the reach of children.
S 16 - Keep away from sources of ignition - No Smoking.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 37/39 - Wear suitable gloves and eye/face protection.
Oral Toxicity(LD50) :
  Oral-Rat    16000.00  mg/kg
(Patty, 1982)

Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Inhalation-Mouse  25500.00  mg/m3/2H
  
 

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :20.00 (μg/capita/day)
 
recommendation for methyl isobutyrate usage levels up to :
 not for fragrance use.
recommendation for methyl isobutyrate usage levels up to :
  200.0000 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
Env. Mutagen Info. Center :Search
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
WISER :UN 1237
 
WGK Germany :3
 
 
 
 methyl 2-methylpropanoate
(EINECS) number :208-929-5
RTECS :NQ5425000 for 547-63-7
chemidplus :000547637
EPA Substance Registry Services :547-63-7
dtp/nci :126780

references :
 methyl 2-methylpropanoate
fl. number :09.412
jecfa number :185
NIST Chemistry WebBook :3252082125
pubchem :154341

other :
VCF-Online: VCF Volatile Compounds in Food
synonyms :
isobutyric acid methyl ester
 methyl 2-methyl propanoate
 methyl 2-methyl propionate
 methyl 2-methylpropanoate
 methyl isobutanoate
2-methyl propanoic acid methyl ester

soluble in :
 alcohol
 water, 9270 mg/L @ 25C

insoluble in :
 water

(odor and/or flavor) blends with :
 acetaldehyde
 acetaldehyde diisoamyl acetal
 amyl 2-methyl butyrate
 amyl formate
 amyl heptanoate
 amyl isobutyrate
 amyl isovalerate
isoamyl valerate
 apple ketal
 benzyl isovalerate
 benzyl methyl ether
 benzyl propionate
 berry pentadienoate
isobutyl acetate
isobutyl formate
 butyl heptanoate
 butyl isovalerate
isobutyl isovalerate
isobutyl propionate
 cyclohexyl butyrate
 cyclohexyl isovalerate
alpha-damascone
gamma-damascone
3-decen-2-one
 diethyl 1-malate
 ethyl acetate
2-ethyl butyl acetate
2-ethyl butyraldehyde
 ethyl decanoate
 ethyl isovalerate
 ethyl pyruvate
 ethyl salicylate
 ethyl valerate
 fruity ketal
 geranyl isovalerate
 geranyl methyl ethyl acetate
2-heptenoic acid
 heptyl 2-methyl butyrate
(Z)-3-hexen-1-al diethyl acetal
(E)-2-hexen-1-al dimethyl acetal
(Z)-3-hexen-1-al dimethyl acetal
(Z)-3-hexen-1-yl acetate
(E)-2-hexen-1-yl butyrate
(Z)-3-hexen-1-yl isobutyrate
(E)-2-hexen-1-yl propionate
(E)-2-hexen-1-yl valerate
(Z)-3-hexen-1-yl valerate
 hexyl 2-methyl butyrate
 hexyl butyrate
 hexyl formate
 hexyl isobutyrate
 marine formate
 methyl 2-methyl butyrate
 methyl acetate
2-methyl allyl butyrate
 methyl butyrate
 methyl citronellate
 methyl ethyl ketone
 methyl isovalerate
S-(methyl thio) hexanoate
2-methyl valeraldehyde
 methyl valerate
 nonyl isovalerate
2-pentanone
(E)-2-penten-1-al
(Z)-2-penten-1-ol
isopropyl acetate
isopropyl butyrate
 propyl heptanoate
 propyl isovalerate
isopropyl isovalerate
isopropyl propionate

(odor and/or flavor) used in :
 apple
 apricot
 banana
 date
 fruit juicy fruit
 grape
 kiwi
 peach
 pear
 pineapple
 strawberry
 wine

natural occurrence in :
apple juice
banana
data pagechampaca concrete @ trace%
grape
kiwi fruit
melon
pineapple
strawberry juice



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