Pyrex^® Aspirator stopcock with ground cone

Pyrex^® Reagent bottles, unground narrow neck

Pyridine-2,6-bis(carboximidamide) dihydrochloride

Ranitidine Hydrochloride

雷尼替丁 盐酸盐

Resomer^® RG 503, Poly(D,L-lactide-co-glycolide)

Resomer^® RG 503，聚（D,L-丙交酯-co-乙交酯）

Rhodium on carbon

碳负载铑

利托那韦, Ritonavir for peak identification

Ruthenium(III) Chloride Hydrate

氯化钌 (III) 水合物

Shogun superior PLA 3D printing filament

Sodium 4-(trifluoromethyl)pyridine-2-sulfinate

Sodium cromoglicate

色甘酸钠