Sigma-Aldrich
Ketoprofen Related Compound D hydrochloride
紧密的反应器螺旋管, Knitted reactor coil
Knoop microhardness of steel
Kontes® NMR tubes 10 mm diam., disposable grade
L-Idaro-1,4-lactone
L-Idaro-1,4-内酯
Lab Alert® 4 way timer with whiteboard and pen
Lacosamide Related Compound D
拉莫三嗪杂质标准品, Lamotrigine impurity standard
Lead
铅