2,2',5,5'-小9体育直播下载安装苹果

intermediate

2,2',5,5'-tetrachlorobenzidine (tcb)

cas.no:15721-02-5

molecular weight:322

appearance:white powder

content:≥98% 

hplc:≥99%

melting point:135 ℃      

insoluble matter:≤0.20 %

packing:50kg drums



网站地图