Sigma-Aldrich
SEBACIC BIS((3,4-DIMETHOXYBENZYLIDENE)HYDRAZIDE)
SEBACIC BIS(ISOBUTYLIDENE)HYDRAZIDE
SETACYL YELLOW 5 G SUPRA
SigmaPrepTM spin column
SigmaPrep TM 离心柱
Silicon carbide
碳化硅
Silicone Elastomer, Rod, Diameter 2.0Mm, Length 1 M, Color White
Silver
银