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4-Pyrimidinol

4-Pyrimidinol ??? ???
?? ??:
4562-27-0
???:
4-Pyrimidinol
???(??):
Uraeil;4-Pyrimidinol;2-Deoxyuracil;pyrimidin-4-one;4-Oxypyrimidine;4-Oxopyrimidine;1H-pyrimidin-4-one;Deaminoisocytosine;1H-pyrimidin-6-one;6-Hydroxypyrimidine
CBNumber:
CB5500772
???:
C4H4N2O
??? ??:
96.09
MOL ??:
4562-27-0.mol
MSDS ??:
SDS

4-Pyrimidinol ??

???
163-167 °C
??
1.28
?? ??
2-8°C
???
DMSO(?? ???), ???(?? ??)
??? ??
??
??? ??
??? ??
?? ?? (pKa)
9.02±0.40(Predicted)
??
White to Orange to Green
BRN
609975
CAS ??????
4562-27-0(CAS DataBase Reference)
NIST
4(1H)-pyrimidinone(4562-27-0)
EPA
4(1H)-Pyrimidinone (4562-27-0)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn
?? ???? ?? 36/37/38-40
????? 22-24/25-36-26
WGK ?? 3
RTECS ?? UW7350100
TSCA Yes
HS ?? 29335990
?? pic-esc 1 g/L ZAPOAK12,583,1972
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
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
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ?? GHS hazard pictograms
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P280 ????/???/???/?????? ?????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
NFPA 704
0
0 0

4-Pyrimidinol C??? ??, ??, ??

??? ??

Light yellow crystalline

Safety Profile

Mutation data reported. When heated to decomposition it emits toxic vapors of NOx

Purification Methods

It crystallises from *benzene or ethyl acetate. The picrate has m 164-166o and crystallises from EtOH [Brown et al. J Chem Soc 4035 1955, Beilstein 24 III/IV 171.]

4-Pyrimidinol ?? ?? ? ???

???

??? ?? 2-????? ???? ????? 4(3H)-????

?? ??

?????

4-Pyrimidinol ?? ??

???( 197)?? ??
??? ?? ??? ?? ?? ? ??
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4-Pyrimidinol ?? ??:

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