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??-?????
??-????? ??? ???
?? ??:
105-21-5
???:
??-?????
???(??):
??-?????
???:
4-Heptanolide
???(??):
2(3H)-Furanone, dihydro-5-propyl-;γ-Heptalactone;GAMMA-HEPTALACTONE;FEMA 2539;5-Propyldihydro-2(3H)-furanone;γ-heptalactone;Γ-HEPTALACTONE;γ-Heptanolactone;5-propyloxolan-2-one;gamma-Propiobutyrolactone
CBNumber:
CB8461603
???:
C7H12O2
??? ??:
128.17
MOL ??:
105-21-5.mol
MSDS ??:
SDS

??-????? ??

?? ?
61-62 °C2 mm Hg(lit.)
??
0.999 g/mL at 25 °C(lit.)
???
2.8hPa at 20℃
FEMA
2539 | GAMMA-HEPTALACTONE
???
n20/D 1.442(lit.)
???
>230 °F
?? ??
Sealed in dry,Room Temperature
???
?????, ???(??)? ???
??? ??
??
??
??
??
????? ??? ? 10.00%. ??? ??? ?? ??? ?? ??
?? ??
???
???? ??
synthetic
???
23g/L at 20℃
JECFA Number
225
BRN
109569
?? ??
?? ? ?
??? ?? ??
??
InChI
1S/C7H12O2/c1-2-3-6-4-5-7(8)9-6/h6H,2-5H2,1H3
InChIKey
VLSVVMPLPMNWBH-UHFFFAOYSA-N
SMILES
CCCC1CCC(=O)O1
LogP
1 at 20℃
CAS ??????
105-21-5(CAS DataBase Reference)
NIST
2(3H)-furanone, dihydro-5-propyl-(105-21-5)
EPA
2(3H)-Furanone, dihydro-5-propyl- (105-21-5)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 38-36/38
????? 36-37/39-26
WGK ?? 2
RTECS ?? LU3697000
TSCA TSCA listed
HS ?? 29322090
???? ??? 10 - Combustible liquids
Hazard Classifications Skin Irrit. 2
?? rabbit,LD50,skin,> 5gm/kg (5000mg/kg),Food and Chemical Toxicology. Vol. 20, Pg. 703, 1982.
???? ?? KE-10739
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P332+P313 ?? ??? ??? ???? ??· ??? ????.
NFPA 704
1
2 0

??-????? C??? ??, ??, ??

??

y-Heptalactone has a sweet, nut-like, caramel odor and a malty, caramel, sweet, herbaceous taste. This substance may be obtained in low yields by hydrogenation of ethyl P-furylacrylate;1 by lactoniation of heptenoic acid; also by condensation of methylacrylate butyl alcohol using a catalyst.

??? ??

Clear colorless to pale yellow liquid

??

Reported found in green tea, asparagus, beer, strawberry, peach and beef

??

Food additive.

?? ??

Obtained in low yields by hydrogenation of ethyl β-furylacrylate; by lactoniation of heptonic acid; also by condensation of methylacrylate butyl alcohol using a catalyst.

?? ??

γ-Heptalactone is a volatile flavor compound found in mangoes, strawberries, pineapples as well as in some dairy products. It is used as a flavoring agent in the food and cosmetic industry.

???

A skin irritant.

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