亚洲人成7777网站高清,欧美日韩国产免费一区二区三区,一区2区3区4区女尤,内地级a艳片高清免费播放 ,XXXXX做受大片喷潮,日韩亚洲欧美有码在线电影,国产GV无码A片在线观看,亚洲综合AV色婷婷,19女的下面流水欣赏不遮,97噜噜噜免费,精品人妻系列无码人妻免费视频,国产精品国产高清国产AV,XXXXX做受大片喷潮,麻豆精选AV,2020亚洲卡一卡二新区入口,忘忧草社区日本在线资源

Appearance: white or light yellow crystal powder;

Purity: ≥98.5%;

Standard: BP2009;

Molecular weight: 323.13;

CAS: 56-75-7;

Melting point: 149.0～153.0oC;

PH: 5.0～7.5;

Specific optical rotation: +18.50o～+20o;

Chloride: ≤0.005%;

Heavy metal: ≤0.001%;

Packaging: 25KG/drum;

Uses: broad spectrum antibiotic

【Back】