久久综合一区二区无码,play文h重口男s女m,杨幂高潮喷水在线观看,免费hs网站在线观看,肉文女配h,从小被肉调教到大h,技师揉着揉着就进去了

Welcome to visit our website. !

ProductHome-Product

2,2',5,5'-Tetrachlorobenzidine

Product Name: 2,2',5,5'-Tetrachlorobenzidine 
Synonyms: [1,1'-biphenyl]-4,4'-diamine, 2,2',5,5'-tetrachloro-; 2,2',5,5'-Tetrachloro-4,4'-biphenyldiamine; 2,2',5,5'-Tetrachlorobiphenyl-4,4'-diamine; TCB 
CAS RN.: 15721-02-5 
EINECS: 239-815-3 
Molecular Weight: 322.0173 
Molecular Formula: C12H8Cl4N2 
Density: 1.555g/cm3 
Melting Point(℃): 135-140℃ 
Boiling Point(℃): 408.2°C at 760 mmHg 
Flash Point(℃): 200.7°C 

Last text:Diisopropyldimethoxysilane Next text: 3,3'-dichlorobenzidine dihydrochloride