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3-??-1-p-??-5-????

3-??-1-p-??-5-???? ??? ???

?? ??:: 86-92-0

???:: 3-??-1-p-??-5-????

???(??):: 3-??-1-p-??-5-????

???:: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one

???(??):: TIMTEC-BB SBB003677;4-TOLYLMETHYLPYRAZOLONE;1-TOLYL-3-METHYL-5-PYRAZOLONE;p-Tolyl-3-methyl-5-pyrazolone;3-Methyl-1-p-tolyl-5-pyrazolon;3-METHYL-1-P-TOLYL-5-PYRAZOLONE;1-(p-Tolyl)-3-Methyl Pyrazolone;1-(p-Tolyl)-3-methyl-5-pyrazolon;3-Methyl-1-(p-toyl)-5-pyrazolone;1-(p-tolyl)-3-methylpyrazolone-5

CBNumber:: CB1169744

???:: C11H12N2O

??? ??:: 188.23

MOL ??:: 86-92-0.mol

MSDS ??:: SDS

?? ?? 244

3-??-1-p-??-5-???? ??

???: 129 °C

?? ?: 323.23°C (rough estimate)

??: 1.1124 (rough estimate)

???: 0.002-0.002Pa at 25℃

???: 1.5850 (estimate)

?? ??: 2-8°C

???: ?????(?? ???), ???(?? ???)

?? ?? (pKa): 2.73±0.50(Predicted)

??? ??: ??

??? ??: ??? ??

??: ????

LogP: 1.77 at 23℃ and pH6.9-7.1

CAS ??????: 86-92-0(CAS DataBase Reference)

EPA: 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-methylphenyl)- (86-92-0)

?? ? ?? ??
?? ? ???? ?? (GHS)

??? ??	Xn
?? ???? ??	22
RTECS ??	UQ9680000
HS ??	2933199030
???? ??	2015-3-7050

????(GHS):

?? ?:

Warning

??·?? ??:

??	??·?? ??	?? ??	??	?? ?	?? ??	P- ??
H317	????? ?? ??? ??? ? ??	?? ??? ??	?? 1	??		P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H412	??? ??? ?? ????? ???	?? ????? ?? - ??	?? 3			P273, P501

??????:

P261	??·?·??·???·??·...·????? ??? ????.
P272	??? ??? ??? ??? ???? ???.
P273	???? ???? ???.
P280	????/???/???/?????? ?????.
P302+P352	??? ??? ??? ?? ????.
P321	(…) ??? ???.
P333+P313	????? ?? ??? ???? ???? ??·??? ????.
P363	?? ??? ??? ??? ?????.
P501	...? ??? / ??? ?? ???.

NFPA 704

	1
0		0

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

??? ??

Beige Solid

??

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-Pyrazol-3-one is used as an antioxidant. Edaravone (E335000) derivative.

3-??-1-p-??-5-???? ?? ?? ? ???

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???	??	???	??	?? ?	??
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3-??-1-p-??-5-???? ?? ??:

?????? ???? ?? ????????? ?????? ?? ???? (2B) ????? ??? ???? 3-??-1-??-2-????-5-? ????? ??? C.I. ?? ??? 34 ????-?? METSULFURON METHYL Cefazolin Tribenuron methyl Methyl 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid 4,4'-[(3,3'-Dimethoxy-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one]

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