国产精品美女挤奶汁视频,亚洲色欲国产AV精品综合,午夜自产精品一区二区三区,波多野的免费AV片,久久精品国产99久久久,夜夜夜夜夜夜天干,777成年免费视频,男人猛躁进女人的毛片A片,国产人妻精品一区二区三区不卡,国产精品久久久久AV福利动漫,人妻无码久久久久久久久久久,成 人 h 高 潮在 线 观 看,AV天堂免费网,日本一区二区三区高清无卡,亚洲欧洲中文日韩乱码av,国产精品专区一区二区三区

Appearance: white or almost white crystal powder;

Purity: 98%～100.5%;

Molecular weight: 256.22;

CAS: 15318-45-3;

Melting point: 160oC～165oC;

Loss on drying: ≤1.0%;

Residue on ignition: ≤0.2%;

Heavy metal: ≤20ppm;

Packaging: 25KG fiber drum;

Uses: Same function with chloramphenicol; used for urinary tract infection, infection of biliary tract and respiratory tract infection

【Back】