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

(E)-4-?????-2-??

(E)-4-?????-2-??
(E)-4-?????-2-?? ??? ???
?? ??:
20629-35-0
???:
(E)-4-?????-2-??
???(??):
(E)-4-?????-2-??
???:
(E)-4-bromobut-2-enoic acid
???(??):
Neratinib Impurity 19;2-Butenoic acid, 4-bromo-;(E)-4-bromobut-2-enoic acid
CBNumber:
CB51876494
???:
C4H5BrO2
??? ??:
164.99
MOL ??:
20629-35-0.mol

(E)-4-?????-2-?? ??

???
73-74 °C(Solv: ligroine (8032-32-4))
?? ?
287.6±23.0 °C(Predicted)
??
1.718±0.06 g/cm3(Predicted)
?? ??
under inert gas (nitrogen or Argon) at 2-8°C
?? ?? (pKa)
4.13±0.10(Predicted)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
????(GHS): GHS hazard pictograms
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H290 ??? ???? ? ?? ?? ????? ?? 1 ?? GHS hazard pictograms P234, P390, P404
H314 ??? ?? ??? ?? ??? ??? ????? ?? ????? ?? 1A, B, C ?? GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
??????:
P234 ??? ???? ?????.
P260 ??·?·??·???·??·...·????? ???? ???.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P301+P330+P331 ???? ?? ?????. ??? ?? ?? ???.
P303+P361+P353 ??(?? ????)? ??? ??? ?? ??? ??? ????? ??? ?? ????/?????.
P363 ?? ??? ??? ??? ?????.
P390 ????? ???? ?? ???? ??????.
P405 ???? ?????.
P406 ??? ???? ?????/...???? ??
P501 ...? ??? / ??? ?? ???.

(E)-4-?????-2-?? C??? ??, ??, ??

(E)-4-?????-2-?? ?? ?? ? ???

???

?? ??

(E)-4-?????-2-?? ?? ??

???( 21)?? ??
??? ?? ??? ?? ?? ? ??
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418671 +8618949823763
 sales@tnjchem.com China 34563 58
Hangzhou Proserre Chemical Co.,Ltd. 		+86-571-86088112
info@proserre.com China 1077 58
Suzhou ARTK Medchem Co., Ltd. 		+86-512-68323658 +86-18168183658
 sales1@artkmedchem.com China 39004 58
VladaChem GmbH +49-7246-3082843
info@vladachem.de Germany 1859 58
Tianjin Branch Chong pharmaceutical intermediates Co., Ltd. 022-60116533 13207668525
 saleskc@scipharmacn.com China 641 58
Shanghai Topbiochem Technology Co., Ltd 021-58170097
info@topbiochem.com China 9478 58
ChemStrong Scientific Co.,Ltd 0755-0755-66853366 13670046396
 sales@chem-strong.com China 18070 56
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66113011 18112977050
 cb6@aikonchem.com China 16684 50
Yantai ShengKailun Chemical Technology Co., Ltd. 13356901049
 3119594100@qq.com China 7964 55
Shanghai Scochem Technology Co., Ltd. 021-33758897
sales@scochem.com China 1596 58
Copyright 2019 ? ChemicalBook. All rights reserved