PRODUCT DATASHEET · DC49889
503O13
Version 1.1f94bf5b · 2026-09-13
| CAS No. | Not available |
| 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 | 1,205.95 |
| Purity | ELSD-HPLC>95% |
| Storage | Original product: up to 1 year under the storage conditions stated on the vial, kept tightly sealed. Stock solutions: aliquots at -20°C, generally up to one month. |
| Shipping condition | Ships from Shanghai. Pure lipid is stable during ice-pack transport. |
| Publication | Whitehead, K., Dorkin, J., Vegas, A. et al. Degradable lipid nanoparticles with predictable in vivo siRNA delivery activity. Nat Commun 5, 4277 (2014). |
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).
Specifications shown are product-page values, not batch test results.
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