BD培养基 227610 6 SP Difco Supplement B with Reconstituting Fluid, 10 mL B W/FLUID添加剂 100ML 
修饰性PEG
DSPE SH COOH MAL NH2 巯基 羧基 氨基 四臂 八臂PEG WAKO和光纯药
BD培养基 227610 6 SP Difco Supplement B with Reconstituting Fluid, 10 mL B W/FLUID添加剂 100ML