成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

D(-)-allo-Threonine

D(-)-allo-Threonine ??? ???
?? ??:
24830-94-2
???:
D(-)-allo-Threonine
???(??):
D-ALLO-THREONINE;H-D-ALLO-THR-OH;(2R,3R)-2-Amino-3-hydroxybutanoic acid;d-allothreonin;allo-D-Threonine;Allothreonine, D-;(r)-allothreonine;D(-)-ALLO-THREONINE;D-Allothreonine >D(-)-allo-Threonine,99%
CBNumber:
CB4255642
???:
C4H9NO3
??? ??:
119.12
MOL ??:
24830-94-2.mol

D(-)-allo-Threonine ??

???
276 °C (dec.)(lit.)
??
-33.5 º (c=1, 1N HCl 24 ºC)
?? ?
222.38°C (rough estimate)
??
1.3126 (rough estimate)
???
-10 ° (C=5, H2O)
?? ??
Keep in dark place,Inert atmosphere,Room temperature
???
?(?? ???)
??? ??
??
??? ??
??? ??
?? ?? (pKa)
2.19±0.10(Predicted)
??
???? ?????
???
??
BRN
1721644
InChIKey
AYFVYJQAPQTCCC-PWNYCUMCSA-N
CAS ??????
24830-94-2(CAS DataBase Reference)
NIST
D-allothreonine(24830-94-2)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
????? 24/25
WGK ?? 3
RTECS ?? BA4050000
HS ?? 29225090
?? rat,LD50,intraperitoneal,6910mg/kg (6910mg/kg),BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)LUNGS, THORAX, OR RESPIRATION: DYSPNEA,Archives of Biochemistry and Biophysics. Vol. 64, Pg. 319, 1956.
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
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
??????:
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
NFPA 704
1
0 0

D(-)-allo-Threonine MSDS


D(-)-allo-Threonine

D(-)-allo-Threonine C??? ??, ??, ??

??? ??

white crystalline powder

??

They are found as constituents of an increasing group of biologically active peptides. Stereocontrolled syntheses of chiral and racemic key intermediates to thienamycin from d-allo-threonine and trans-crotonic acid.

Purification Methods

Recrystallise D-allothreonine from aqueous EtOH or 50% EtOH. [Elliot J Chem Soc 62 1950, Birnbaum et al. J Biol Chem 194 455 1952, IR: Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 1961, Beilstein 4 IV 3170.]

D(-)-allo-Threonine ?? ?? ? ???

???

?? ??


D(-)-allo-Threonine ?? ??

???( 278)?? ??
??? ?? ??? ?? ?? ? ??
Huzhou Chenxi Environmental Protection Technology Co. , Ltd.
+8616762203950
1034385273@qq.com China 55 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29792 60
Taizhou Tianhong Biochemistry Technology Co., Ltd.
0523-86132544
sales@thbiochem.com CHINA 305 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21632 55
career henan chemical co
+86-0371-86658258 +8613203830695
sales@coreychem.com China 29869 58
Jinan Finer Chemical Co., Ltd
+86-531-88989536 +86-15508631887
sales@finerchem.com China 2958 58
Accela ChemBio Inc.
+1-858-6993322
info@accelachem.com United States 18526 58
Shanghai Worldyang Chemical Co.,Ltd.
+86-021-56795779 +8613651600618
sales@worldyachem.com China 1227 58
Changzhou Ditong Chemical Co.,Ltd
+86-0519-88299272
info@edengenechem.com China 2158 58
Hubei xin bonus chemical co. LTD
86-13657291602
linda@hubeijusheng.com CHINA 22963 58

D(-)-allo-Threonine ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved