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1,3-??????

1,3-??????
1,3-?????? ??? ???
?? ??:
874-14-6
???:
1,3-??????
???(??):
1,3-???????;1,3-??????
???:
1,3-Dimethyluracil
???(??):
1,3-DIMETHYLPYRIMIDINE-2,4(1H,3H)-DIONE;1,3-dimethylpyrimidine-2,4-dione;1,3-DIMETHYL-1H-PYRIMIDINE-2,4-DIONE;AKOS BBS-00004678;1,3-DIMETHYLURACIL;N,N'-Dimethyluracil;TIMTEC-BB SBB004164;N1,N3-Dimethyluracil;Uracil, 1,3-dimethyl-;1,3-Dimethyluracil >
CBNumber:
CB6147431
???:
C6H8N2O2
??? ??:
140.14
MOL ??:
874-14-6.mol
MSDS ??:
SDS

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

???
119-122 °C (lit.)
?? ?
256.63°C (rough estimate)
??
1.2850 (rough estimate)
???
1.5010 (estimate)
?? ??
Sealed in dry,Room Temperature
?? ?? (pKa)
-2.04±0.20(Predicted)
??? ??
powder to crystal
??
???? ?? ??
???
?? ???
BRN
124074
InChIKey
JSDBKAHWADVXFU-UHFFFAOYSA-N
CAS ??????
874-14-6(CAS DataBase Reference)
NIST
2,4(1H,3H)-Pyrimidinedione, 1,3-dimethyl-(874-14-6)
EPA
2,4(1H,3H)-Pyrimidinedione, 1,3-dimethyl- (874-14-6)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 36-36/37/38
????? 22-24/25-39-26-36/37
WGK ?? 3
TSCA Yes
HS ?? 29335990
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P271 ?? ?? ??? ? ?? ???? ?????.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P312 ???? ??? ????(??)? ??? ????.
P403+P233 ??? ??? ? ?? ?? ??? ???? ?????.
NFPA 704
1
2 0

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

??? ??

white to light yellow needles

??

1,3-Dimethyluracil is suitable reagent used to investigate the steady-state absorption and fluorescence spectra of uracil derivatives. It may be used in the preparation of 2,6-dihydroxynicotinamide.

?? ??

1,3-Dimethyluracil is a pyrimidine derivative. Stability of the C6-centered carbanions derived from 1,3-dimethyluracil has been investigated in the gas phase and in DMSO and water solutions. The excited state structural dynamics of 1,3-dimethyluracil (DMU) in water and acetonitrile has been studied by resonance Raman spectroscopy. Crystal structure of 1,3-dimethyluracil has been reported. Ultraviolet irradiation of aqueous 1,3-dimethyluracil results in hydration of the 5:6 double bond of the uracil ring to form 1,3-dimethyl-6-oxy-hydrouracil.

Purification Methods

Crystallise it from EtOH/ether. [Beilstein 24 III/IV 1196.]

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

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

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1,3-?????? ?? ??:

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