午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

N-hydroxyputrescine

N-hydroxyputrescine ??? ???
?? ??:
6536-85-2
???:
N-hydroxyputrescine
???(??):
N-hydroxyputrescine;4-aminobutylhydroxylamine;1,4-Butanediamine, N1-hydroxy-
CBNumber:
CB13351182
???:
C4H12N2O
??? ??:
104.15
MOL ??:
6536-85-2.mol

N-hydroxyputrescine ??

??

N-hydroxyputrescine C??? ??, ??, ??

N-hydroxyputrescine ?? ?? ? ???

???

?? ??


N-hydroxyputrescine ?? ??

???( 2)?? ??
??? ?? ??? ?? ?? ? ??
ShenZhen Trendseen Biological Technology Co.,Ltd.
13417589054
trendseenbio@gmail.com China 11681 58
ShenZhen Trendseen Biological Technology Co.,Ltd. 13417589054 13417589054
trendseenbio@gmail.com China 9070 58

Copyright 2019 ? ChemicalBook. All rights reserved