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L-?????????

L-?????????
L-????????? ??? ???
?? ??:
7662-51-3
???:
L-?????????
???(??):
L-?????????
???:
L-TYROSINE HYDRAZIDE
???(??):
L-Tyr-NHNH2;H-TYR-NHNH2;Tyrosinehydrazide;L-tyrosinohydrazide;L-TYROSINE HYDRAZIDE;L-Tyrosine hydrazide,98%;L-TYROSINE HYDRAZIDE 98%;L-Tyrosine hydrazide≥ 99% (HPLC);L-Tyrosine Hydrazide;(S)-2-AMino-3-(4-hydroxyphenyl)propanehydrazide
CBNumber:
CB1735170
???:
C9H13N3O2
??? ??:
195.22
MOL ??:
7662-51-3.mol
MSDS ??:
SDS

L-????????? ??

???
196-198 °C(lit.)
?? ?
331.89°C (rough estimate)
??
1.1985 (rough estimate)
???
78 ° (C=5, 1mol/L HCl)
?? ??
Keep in dark place,Inert atmosphere,Room temperature
???
almost transparency[in 1mol/L HCl]
???
almost transparency in 1mol/L HCl
??? ??
powder to crystal
?? ?? (pKa)
9.96±0.15(Predicted)
??
White to Orange to Green
optical activity
[α]20/D +76°, c = 4.2 in 1 M HCl
BRN
2808635
CAS ??????
7662-51-3(CAS DataBase Reference)
EPA
L-Tyrosine, hydrazide (7662-51-3)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 36-43
????? 26-36/37
WGK ?? 3
HS ?? 29280000
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H317 ????? ?? ??? ??? ? ?? ?? ??? ?? ?? 1 ?? GHS hazard pictograms P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
??????:
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
NFPA 704
0
1 0

L-????????? C??? ??, ??, ??

??? ??

white fine crystals

??

Resolving agent for various DL-amino acids

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