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?? ??:
3068-88-0
???:
?????
???(??):
??-?????;?????
???:
BETA-BUTYROLACTONE
???(??):
2-Oxetanone, 4-methyl-;β-BUTYROLACTONE;4-METHYL-2-OXETANONE;4-methyl-2-oxetanon;3-BUTANOLIDE;3-Butyrolactone;SS-BUTYROLACTONE;beta-Butyrolakton;BETA-BUTYROLACTONE;β-Butyrolactone >
CBNumber:
CB0111872
???:
C4H6O2
??? ??:
86.09
MOL ??:
3068-88-0.mol
MSDS ??:
SDS

????? ??

???
−43.5 °C(lit.)
?? ?
71-73 °C29 mm Hg(lit.)
??
1.056 g/mL at 25 °C(lit.)
???
n20/D 1.411(lit.)
???
140 °F
???
Soluble[in water]
??
?? ?? ?? ??
???
132.7g/L(18℃)
???
????. ???, ????? ???? ????. ???.
InChI
InChI=1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3
InChIKey
GSCLMSFRWBPUSK-UHFFFAOYSA-N
SMILES
O1C(C)CC1=O
CAS ??????
3068-88-0(CAS DataBase Reference)
IARC
2B (Vol. 11, Sup 7, 71) 1999
EPA
.beta.-Butyrolactone (3068-88-0)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn
?? ???? ?? 36/38-40
????? 26-36
????(UN No.) UN 1993 3/PG 3
WGK ?? 3
RTECS ?? RQ8050000
HS ?? 2932.20.5050
?? ?? 3.2
???? III
????(GHS): GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H226 ??? ?? ? ?? ??? ?? ?? 3 ??
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H351 ?? ??? ??? ??? (????? ?? ???? ???? ???? ??? ?? ????? ??? ???? ??) ??? ?? ?? 2 ?? P201, P202, P281, P308+P313, P405,P501
??????:
P201 ?? ? ?? ???? ?????.
P210 ?·???·??·????? ????? - ?? ???.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P308+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
2
2 0

????? C??? ??, ??, ??

??? ??

colourless liquid

??

β-Butyrolactone was used in the preparation of (3- O -[oligo-(3-hydroxybutyrate ester)] fluorescein, fluorescein derivative of poly(3-hydroxybutyrate) via anionic polymerization.

?? ??

Clear colorless liquid with an acetone-like odor.

??? ?? ??

Highly flammable. Water soluble

?? ???

BETA-BUTYROLACTONE is incompatible with strong oxidizers and strong bases. BETA-BUTYROLACTONE is hydrolyzed by water and aqueous alkali.

???

Possible carcinogen, neoplastigen; tumori- genmutagen, irritant, slightly toxic.

????

BETA-BUTYROLACTONE is combustible.

Safety Profile

Suspected carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mildly toxic by ingestion. A moderate skin irritant. Mutation data reported. When heated to

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