艳妇乳肉豪妇荡乳AV无码福利,最新久久国产亚洲高清观看,91久久无码99精品高潮久,中文乱码字字幕在线第5页一,免费大片av手机看片不卡高清,91精品国产91久久久久久青草_精品国产亚洲人成在线观看_91国在线啪精品一区_国产一区二区三区在线免费_国产精品v欧美精品∨日韩_日韩欧美国产三级_国产三级精品三级在专区_国产精选第一页_欧美国产精品va在线观看 ,中文字幕一区二区三区精华液_亚洲欧美一区二区视频_麻花豆剧国产MV在视频_红桃AV一区二区三区在线无码AV ,国产欧美日本亚洲精品一5|99视频在线精品国自产拍亚瑟|国产色精品vr一区区三区|国产精品极品美女自在线观看免费|欧洲精品精美色视频在线观看

Formulation
Frozen in 2mM HCl

Source
Human placenta. Source material tested for hepatitis B antigen and HIV-1 antibody.

Quality
Electrophoretically homogeneous (SDS-PAGE)
Shown to promote attachment and spreading of HT-1080 human fibrosarcoma cells
Found negative for bacteria, fungi, and mycoplasma

Preparation and Storage
Stable for at least three months at -20°C. Avoid multiple freeze-thaws.

Handling
Effective as a gel or thin coating at a recommended concentration of 0.2-2 μg/cm2 of growth surface depending on cell type