氧化钌(IV), Ruthenium(IV) oxide

水杨酸, Salicylic Acid

氟化钐(III), Samarium(III) fluoride

皂草苷, Saponin

水合乙酸钪(III), Scandium(III) Acetate Hydrate

三氧化二钪, Scandium(III) oxide

L-丝氨酸, L-Serine

硅胶干燥剂, Silica gel desiccant

硅胶 60, Silica gel 60

硅胶, Silica gel