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4,7-?????????

4,7-????????? ??? ???

?? ??:: 1983-81-9

???:: 4,7-?????????

???(??):: 4,7-?????????

???:: 4,7-DIHYDROXYCOUMARIN

???(??):: NSC 136214;AURORA KA-3743;4,7-HYDROXY-COUMARIN;4,7-DIHYDROXYCOUMARIN;4,7-Dihydroxychromen-4-one;4,7-Dihydroxy-2-oxo-2H-1-benzopyran;4,7-Dihydroxy-2H-1-benzopyran-2-one;2H-1-Benzopyran-2-one, 4,7-dihydroxy-;4,7DIHYDROXYCOUMARIN,4,7 DIHYDROXYCOUMARIN

CBNumber:: CB5782233

???:: C9H6O4

??? ??:: 178.14

MOL ??:: 1983-81-9.mol

MSDS ??:: SDS

?? ?? 62

4,7-????????? ??

???: 275-280 °C

?? ?: 445.5±45.0 °C(Predicted)

??: 1.612±0.06 g/cm3(Predicted)

?? ??: 2-8°C

??? ??: powder to crystal

?? ?? (pKa): 4.50±1.00(Predicted)

??: Light yellow to Yellow to Orange

?? ??(λmax): 310nm(EtOH aq.)(lit.)

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

??? ??	Xi
?? ???? ??	22-36
?????	26
WGK ??	3
HS ??	2932.20.3000

????(GHS):

?? ?:

Warning

??·?? ??:

??	??·?? ??	?? ??	??	?? ?	?? ??	P- ??
H302	??? ???	?? ?? ?? - ??	?? 4	??		P264, P270, P301+P312, P330, P501
H319	?? ?? ??? ???	?? ? ?? ?? ??? ??	?? 2A	??		P264, P280, P305+P351+P338,P337+P313P

??????:

P264	?? ??? ?? ??? ????.
P264	?? ??? ?? ??? ????.
P270	? ??? ??? ??? ???, ???? ???? ???.
P280	????/???/???/?????? ?????.
P301+P312	??? ???? ??? ????(??)? ??? ????.
P305+P351+P338	?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P337+P313	?? ?? ??? ???? ???? ??· ??? ????.

NFPA 704

	0
2		0

4,7-????????? C??? ??, ??, ??

4,7-????????? ?? ?? ? ???

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4,7-????????? ?? ??

???( 62)?? ??

???	??	???	??	?? ?	??
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4,7-????????? ?? ??:

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