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5,5-???-1,3-????????

5,5-???-1,3-????????
5,5-???-1,3-???????? ??? ???
?? ??:
126-81-8
???:
5,5-???-1,3-????????
???(??):
5,5-????-1,3-????????;5,5-???-1,3-????????;5,5-???-1,3-???????
???:
Dimedone
???(??):
METHONE;5,5-DIMETHYL-1,3-CYCLOHEXANEDIONE;5,5-DIMETHYL-CYCLOHEXANE-1,3-DIONE;5,5-Dimethyl-1,3-cyclohexadione;DIMEDON;Cyclomethone;lu274;Medon;Lu 274;Methon
CBNumber:
CB1741746
???:
C8H12O2
??? ??:
140.18
MOL ??:
126-81-8.mol
MSDS ??:
SDS

5,5-???-1,3-???????? ??

???
146-148 °C (lit.)
?? ?
216.69°C (rough estimate)
??
1.0373 (rough estimate)
???
1.4787 (estimate)
?? ??
Keep in dark place,Inert atmosphere,Room temperature
???
4.01g/L
?? ?? (pKa)
4.8(at 25℃)
??? ??
??
??
??~???? ???
???
0.416g/100mL(25℃)
Merck
14,3242
BRN
471489
???
?????? ?? ??? ? ????. ?? ???? ???? ????.
InChIKey
BADXJIPKFRBFOT-UHFFFAOYSA-N
LogP
1.3 at 20℃
CAS ??????
126-81-8(CAS DataBase Reference)
NIST
Dimedone(126-81-8)
EPA
1,3-Cyclohexanedione, 5,5-dimethyl- (126-81-8)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 36/37/38
????? 24/25-36-26
WGK ?? 2
RTECS ?? GV0345000
F ?????? 8-9
TSCA Yes
HS ?? 29142900
???? ?? KE-11289
????(GHS): GHS hazard pictogramsGHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H228 ??? ?? ??? ?? ?? 1
?? 2
??
??
GHS hazard pictograms P210, P240,P241, P280, P370+P378
H317 ????? ?? ??? ??? ? ?? ?? ??? ?? ?? 1 ?? GHS hazard pictograms P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H334 ?? ? ????? ??, ?? ?? ?? ?? ?? ??? ? ?? ??? ??? ?? ?? 1 ?? GHS hazard pictograms P261, P285, P304+P341, P342+P311,P501
H350 ?? ??? ? ?? (????? ?? ???? ???? ???? ??? ?? ????? ??? ???? ??) ??? ?? ?? 1A, 1B ?? GHS hazard pictograms
H360 ?? ?? ????? ??? ??? ? ?? ???? ?? ?? 1A, 1B ?? GHS hazard pictograms
H373 ??? ?? ?? ???? ??(??, ??? ?? ??? ?? ??? ??)? ??? ??? ? ?? ?? ???? ?? - ?? ?? ?? 2 ?? P260, P314, P501
??????:
P201 ?? ? ?? ???? ?????.
P202 ?? ?? ?? ??? ?? ???? ??? ???? ???.
P260 ??·?·??·???·??·...·????? ???? ???.
P272 ??? ??? ??? ??? ???? ???.
P285 ??? ? ?? ?? ???? ??? ???? ?????
P302+P352 ??? ??? ??? ?? ????.
P304+P341 ???? ??,??? ??? ?? ??? ??? ??? ?? ??? ??? ???? ?? ??? ??? ??? ?
P308+P313 ?? ?? ??? ???? ???? ??· ??? ????.
P342+P311 ??? ??? ???? ????(??)? ??? ????.
P363 ?? ??? ??? ??? ?????.
P403 ??? ? ?? ?? ?????.
NFPA 704
1
1 1

5,5-???-1,3-???????? MSDS


5,5-Dimethyl-1,3-cyclohexanedione

5,5-???-1,3-???????? C??? ??, ??, ??

??? ??

solid

??

Reagent used in synthesis of fused 3-methylfuransDimedone is used in organic chemistry to identify the presence of aldehyde group. It is also used as a catalyst in the formation of transition-metal complexes. Further, it is also employed in colorimetry, crystallography, luminescence and spectrophotometric analysis. In addition to this, it is used in the synthesis of naturally occurring fused 3-methylfurans.

?? ??

5,5-dimethyl-1,3-cyclohexanedione (Dimedone) is basically a highly sensitive and very specific reagent used for the determination of aldehydes. It is highly advantageous as it is environment friendly, give high yields and is a simple workup procedure.

Purification Methods

Crystallise dimedone from acetone (ca 8mL/g), water or aqueous EtOH. Dry it in air. [Schneider & Todd Org Synth Coll Vol II 200 1943, Beilstein 7 H 559, 7 IV 1999.]

5,5-???-1,3-???????? ?? ?? ? ???

???

?? ??


5,5-???-1,3-???????? ?? ??

???( 485)?? ??
??? ?? ??? ?? ?? ? ??
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