Obychnye khimikaty
2026-07-19
2-метил피리딘-3-борная кислота频哪спиртэфир
2-Methyl-3-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)pyridine
2-Methyl-3-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)pyridine 97%