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DBCO-Maleimide Catalog # Pkg Size Quantity A108-1000 1000mg 27120.00 A108-100 100mg 5300.00 A108-25 25mg 2070.00 DBCO-Maleimide enables simple and efficient incorporation of DBCO moiety onto cysteine-containing peptides or other thiol-containing molecules. The maleimide group specifically and efficiently reacts with reduced thiols (sulfhydryl groups, –SH) at pH 6.5 to 7.5 to form stable thioether bonds. A short spacer arm adds minimal mass to modified molecules (427.4 daltons). This product is not recommended for labeling of proteins or any other biopolymers in aqueous buffers due to poor aqueous solubility. General Properties Molecular weight 427.75 Chemical composition C25H21N3O4 CAS 1395786-30-7 Solubility DMSO, DMF, DCM, THF, Chloroform Purity >97% (HPLC) Appearance Slightly grey crystalline Storage Conditions -20°C Shipping conditions Ambient temperature