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Sulfo-SMCC sodium is a commonly used hetero-bifunctional, noncleavable ADC crosslinker bearing N-hydroxysuccinimide (NHS) ester and maleimide groups to react with primary amines and sulfhydryl groups, respectively. Sulfo-SMCC is heterobifunctionalcrosslinker that contains N-hydroxysuccinimide (NHS) ester and maleimide groups that allow covalent conjugation of amine- and sulfhydryl-containing molecules. NHS esters react with primary amines at pH 7~9 to form amide bonds, while maleimides react with sulfhydryl groups at pH 6.5~7.5 to form stable thioether bonds. In aqueous solutions, NHS ester hydrolytic degradation is a competing reaction whose rate increases with pH. The maleimide group is more stable than the NHS-ester group but will slowly hydrolyze and loses its reaction specificity for sulfhydryls at pH values > 7.5. For these reasons, conjugations with these crosslinkers are usually performed at pH 7.2~7.5, with the NHS-ester (amine-targeted) reacted before or simultaneous with the maleimide (sulfhydryltargeted) reaction.
| Molecular Weight | 436.37 |
| Formula | C16H17N2NaO9S |
| CAS Number | 92921-24-9 |
| Solubility (25°C) | Water 2.5 mg/mL DMSO |
| Storage | 2-8°C, protect from light, dry, sealed |
| Related Drug-Linker Conjugates for ADC Products |
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| Mc-Val-Cit-PABC-PNP
Mc-Val-Cit-PABC-PNP is a histone-cleavable peptide linker for antibody-drug couplings (ADCs) that can be used for the synthesis of ADCs such as Brentuximab vedotin. |
| DM1-SMCC
DM1-SMCC is DM1 with a reactive linker SMCC, which can react with antibody to make ADC. |
| CL2A-SN-38
CL2A-SN-38 is a SN38 derivative with a peptide-linker which can easily react with antibody to form an ADC. |
| BS3 (bis(sulfosuccinimidyl)suberate)
BS3 (bis(sulfosuccinimidyl)suberate) is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). |
| DSS Crosslinker (Disuccinimidyl suberate)
DSS Crosslinker (Disuccinimidyl suberate) is a non-cleavable, cell membrane permeable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). |
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