Obychnye khimikaty
2026-07-19
3-метил-4-нитроборная кислота频哪спиртэфир
4,4,5,5-Tetramethyl-2-(3-methyl-4-nitrophenyl)-1,3,2-dioxaborolane
4,4,5,5-Tetramethyl-2-(3-methyl-4-nitrophenyl)-1,3,2-dioxaborolane 95+%