Sigma-Aldrich
Barium titanate(IV)
氧化钡钛
Carbon
活性炭黑
Cerium(IV) oxide, dispersion
氧化铈(IV)
Coumarin 334
DL-2-Aminobutyric acid
DL -2-氨基丁酸
Ethyl Laurate
月桂酸乙酯
Germanium(IV) oxide
二氧化锗
Greiner pipette tips
Greiner screw cap
Guanidine-13C,15N3 hydrochloride
胍-13C,15N3 盐酸盐