甲氧基聚乙二醇-巯基,97% average Mw10000
甲氧基聚乙二醇-巯基,97% average Mw 2000
甲氧基聚乙二醇-巯基,97% average Mw 5000
甲氧基聚乙二醇-巯基,97% average Mw1000