MF: C16 H18 N2 O14 S2 . 2 Na, MW: 572.43, Alternative Names: Bis(sulfosuccinimidyl) suberate; Suberic acid bis(3-sulfo-N-hydroxysuccinimide ester); Bis(sulfosuccinimidyl)suberate; BS3; Sulfo-DSS; BS 3; BSSS. BS3 crosslinker (Bis[sulfosuccinimidyl] suberate; Sulfo-DSS; BSSS) is an amine-reactive, water soluble, homobifunctional protein crosslinker.