Obychnye khimikaty
2026-07-19
5,3'-二гидрокси-7,4'-二метилкислорода基黄кетон
4H-1-Benzopyran-4-one,5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-
4H-1-Benzopyran-4-one,5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy- 98%