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SiR (SiR-6-COOH
CA-Ac exhibits a slower labeling rate and lower affinity for the HaloTag protein
S)-AHPC-CO-PEG2-Cl Synonyms CAS Number n/a Related CAS Molecular Formula C29H41ClN4O6S Molecular Weight 609
874 Purity (HPLC) >= 95% Solubility DMSO
Mal-Propionyl-PEG4-Gly-Gly-Phe-Gly-PAB(m-PEG8)-PNP Size:100mg SiR (SiR-6-COOHSOLU KNEX cleavable linker features a Gly Gly Phe Gly (GGFG) peptide. The conventional maleimidocaproyl (MC) unit is replaced by Mal Propionyl PEG4 moiety to enhance aqueous solubility. The Mal Propionyl group may also improve retro Michael addition stability during antibody conjugation. m PEG8 is attached to the commonly used self immolative para aminobenzyl (PAB) moiety to increase aqueous solubility. The PNP (para nitrophenyl) moiety serves as an
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