Thermo Scientific Pierce SMPB is an amine-to-thiol cross-linker containing NHS ester and maleimide reactive groups cluster (located at the other end of the medium-length aromatic spacer arm (11.6 Å)).

Features of SMPB:

•Reactive groups: NHS Ester&Maleimides
•React with the following groups: Amino and thiol groups
• Extended chain analogues of MBS
• Uncleavable
• Insoluble in water (first dissolve in DMF or DMSO)
•The conjugate formed with SMPB is more potent in serum than the SPDP conjugate Stable

Product References:
Crosslinking Agent Application Guide -- Search the latest references for this product

Related Products
Sulfo-SMPB (Sulfosuccinimidyl 4-(N-maleimidobenzene (base) butyrate)