DC Chemicals

DC67605 · Updated 28 October 2026

PyCB lipid

Instructions for Use

Before use

Check the supplied lot number, batch COA, approved SDS, quantity and retest date. Pure form: −20 °C, 1 year; In solvent: −80 °C, 6 months; −20 °C, 1 month. Sealed and protected from light.

For small quantities of viscous or oily lipid, volumetric transfer can reduce weighing losses. Confirm solvent compatibility and solubility before preparing a stock; calculated volumes do not establish solubility.

Stock-solution planning

Volume (mL) = mass (mg) × 1000 / [molecular weight × concentration (mM)].

Mass10 mM20 mM
10 mg1.0759 mL0.5380 mL
25 mg2.6898 mL1.3449 mL
50 mg5.3797 mL2.6898 mL
100 mg10.7594 mL5.3797 mL

Literature formulation reference

ComponentDC Chemicals productMolecular weightMolar ratioMass at 1 µmol total lipid (mg)
ALC-0315DC42537766.2735.60.272792
PyCB lipidDC67605929.4244.40.412662
DSPCDC57005790.15200.158030

ALC-0315/PyCB/DSPC = 35.6:44.4:20 mol%. Source: Supplementary Materials, optimized ThrCo LNP composition (p. 3). This formulation contains neither cholesterol nor PEG lipid. N/P and lipid:RNA mass ratio were not established; neither is inferred from the molar composition.

Read the complete study conditions, biological results, tolerability and figures →

References

  1. Zhao Y, et al. Replacing cholesterol and PEGylated lipids with zwitterionic ionizable lipids in LNPs for spleen-specific mRNA translation. Science Advances 11, eady6460 (2025). DOI: 10.1126/sciadv.ady6460.
  2. Full text and Supplementary Materials: composition p. 3; Figs. S3, S5 and S6; main Figs. 2–5.