tert-Butyl 4-chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine-7-car

铋多晶块, Bismuth polycrystalline lump

碳黑, Carbon black

碳溅射靶, Carbon sputtering target

铬粉末, Chromium powder

铬片, Chromium pieces

铬溅射靶, Chromium sputtering target

钴粉, Cobalt powder

钴柱, Cobalt slug

钴箔, Cobalt foil

钴箔, Cobalt foil