成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

A2060-00-N


CAS: 65869-63-8

bis(2,5-dioxopyrrolidin-1-yl) 3,3'-(ethane-1,2-diylbis(oxy))dipropanoate

Prices: $38.00/100 mg | $78.00/250 mg


Product Information

  • Formula: C16H20N2O10
  • Synonym: Bis-PEG2 NHS-ester
  • Purity: tech grade
  • Availability: In Stock