DSPE-PEG(2000) Maleimide (ammonium salt)

DSPE-PEG(2000) maleimide is a PEGylated derivative of 1,2-distearoyl-sn-glycero-PE (DSPE, Cay-15095). It has been used in the synthesis of immunoliposomes for the delivery of siRNA and anticancer agents.Formal Name: alpha-[(9R)-6-hydroxy-6-oxido-1,12-dioxo-9-[(1-oxooctadecyl)oxy]-5,7,11-trioxa-2-aza-6-phosphanonacos-1-yl]-omega-[2-[[3-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-1-oxopropyl]amino]ethoxy]-poly(oxy-1,2-ethanediyl), monoammonium salt. CAS Number: 474922-22-0. Synonyms: 1,2-Distearoyl-sn-glycero-3-PE-N-[maleimide(polyethylene glycol)-2000], 1,2-Distearoyl-sn-glycero-3-phosphatidylethanolamine-N-[maleimide(polyethylene glycol)-2000], 1,2-Distearoyl-sn-glycero-3-phosphoethanolamine-N-[maleimide(polyethylene glycol)-2000], 1,2-DSPE-PEG(2000) Mal, DSPE-PEG-Mal. Molecular Formula: (C2H4O)nC51H91N3O13P . NH4. Purity: >90%. Formulation: (Request formulation change), A solid. Solubility: DMF: 10 mg/ml, DMF:PBS (pH 7.2) (1:3): 0.25 mg/ml. SMILES: O=C(NCCOP([O-])(OCC(COC(CCCCCCCCCCCCCCCCC)=O)OC(CCCCCCCCCCCCCCCCC)=O)=O)OCCOCCNC(CCN1C(C=CC1=O)=O)=O.[NH4+].