503O13|Ionizable Lipid for LNP

Cas No.:	1566560-20-0
Chemical Name:	503O13
Synonyms:	503-O13， 503O-13
SMILES:	O=C(CCN(CCN(CCCN(CCN(CCC(OCCCCCCCCCCCCC)=O)CCC(OCCCCCCCCCCCCC)=O)C)C)CCC(OCCCCCCCCCCCCC)=O)OCCCCCCCCCCCCC
Formula:	C₇₃H₁₄₄N₄O₈
M.Wt:	1205.95
Purity:	>95%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
Publication:	Whitehead, K., Dorkin, J., Vegas, A. et al. Degradable lipid nanoparticles with predictable in vivo siRNA delivery activity. Nat Commun 5, 4277 (2014).

Cat. No.	Product name	Field of application
DC70010	98N12-5	98N12-5 is an ionizable cationic lipid. It has been used in combination with other lipids in the generation of lipid nanoparticles (LNPs). LNPs containing 98N12-5 and encapsulating proprotein convertase subtilisin kexin type 9 (PCSK9) siRNA selectively accumulate in the liver and reduce total serum cholesterol levels in mice and rats and serum LDL levels in cynomolgus monkeys.
DC49889	503O13	503O13 is a next-generation, biodegradable lipid nanoparticle (LNP) engineered for highly efficient and targeted siRNA delivery. Designed through rational structure-activity criteria—including optimal tail length (O13), tertiary amines, and a surface pKa ≥5.5—this single-component LNP achieves unparalleled gene silencing with an ultra-low EC50 of 0.01 mg/kg in preclinical models.503O13 outperforms non-degradable counterparts (e.g., C12-200) with improved toxicity profiles—no hepatic necrosis or pancreatic inflammation—while maintaining rapid blood clearance (t1/2: 6 min) and organ-specific accumulation (liver/spleen).