Sigma-Aldrich
Protamine chloride from salmon
Silicone Elastomer, Sheet, Thickness 1.0Mm, Size 100X100 Mm, 1 Piece
Silver
银
Sulfatase from Patella vulgata (keyhole limpet)
Tantalum
钽
Tetrafluoroboric acid diethyl ether complex
四氟硼酸-二乙醚络合物
Tin
锡