亚洲毛片免费在线观看|一级做a爱片久久蜜桃|欧美日韩加勒比精品一区|欧美乱偷一区二区三区在线|国产午夜无码片在线观看影|久久久久国色av∨免费看|久久精品国产亚洲av高清热|国产成人亚洲精品无码综合原创

    ≥99.2%

    25kg/pp bag

    This product is used for the synthesis of azoic dyes, such as jujube red base GP, blue salt VB, Naphthol AS-RL, Naphthol AS-SG, Ann Blue B color salt, direct fast orange F3G and reactive dyes, etc.. Medicine as a medicine (such as A levels) intermediate synthesis.

    104-94-9

    C₇H₉NO

    123.1525