国产区一二三,一级免费黄色影片,99精品在线,日韩在线视频第一页,亚洲色图偷,国产精品传媒视频,久久夜夜操妹子

Product: Pharmaceutical intermediate APIs Ultraviolet light absorber Pesticide
Product

    4,4'-Dimethoxybenzophenone

    Name: 4,4'-Dimethoxybenzophenone
    English name: 4,4'-Dimethoxybenzophenone
    CAS NO: 90-96-0
    Molecular weight: 242.2699
    EC NO: 202-028-0
    Molecular formula: C15H14O3
    Structural formula:

< Return >