
Crown Ethers
GM Chemical is a leading Crown ethers manufacturer & supplier, and we had developed a series of Nitro, Amino, Formyl, Carboxy, Hydroxymethyl substituted Benzo-12-crown-4, Benzo-15-crown-5, Benzo-18-crown-6 and Dibenzo-24-crown-8. Especially, Benzo-15-crown-5 [14098-44-3] had been already industrialized in our plant.