两点连接学说 theory of two－point attachment

内切糖苷酶H，皱襞链霉菌，重组，大肠埃希菌，52769-51-4，Endoglycosidase H, <i>Streptomyces plicatus</i>, Recombinant, <i>E. coli</i> cleaves between the two N-acetylglucosamine residues in the diacetylchitobiose core of the oligosaccharide.，阿拉丁

￥2455.90

曲拉通 Triton™ X-45，9002-93-1，Cloud Point 39.4 - 44.8 °C，阿拉丁

￥200.90

结肠癌30例两点同例正常对照30例

¥1800

TrkA抑制剂，388626-12-8，≥97%, sum of two isomers，阿拉丁

￥1151.90

TMEFF2/TMEFF2蛋白Recombinant Human Tomoregulin-2 (TMEFF2) (Active)重组蛋白(TR-2)(Hyperplastic polyposis protein 1)(Transmembrane protein with EGF-like and two follistatin-like domains)蛋白

￥1908