DC Chemicals

DC60821 · Updated 27 October 2026

Lipid TOT-5

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 mg0.9490 mL0.4745 mL
25 mg2.3726 mL1.1863 mL
50 mg4.7452 mL2.3726 mL
100 mg9.4904 mL4.7452 mL

Literature formulation reference

ComponentDC Chemicals productMolecular weightMolar ratioMass at 1 µmol total lipid (mg)
TOT-5DC608211053.693650.674779
DSPCDC57005790.15150.116771
CholesterolDCD-041386.65200.076187
DMG-PEG2000DC4016925071.50.037049

The source labels 65:15:20:1.5 as mol%, although these entries sum to 101.5. Here they are reproduced as relative molar parts; calculated masses normalize by 101.5 and are not an author-reported correction. The study calls this formulation 15%DSPC. Its 3%DSPC comparator is 65:3:32:1.5. DMG-PEG2000 uses the DC Chemicals nominal average molecular weight 2507.

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

References

  1. Suzuki Y, Yakuwa M, Sato M, et al. Splenic B cell-targeting lipid nanoparticles for safe and effective mRNA vaccine delivery. Journal of Controlled Release 382, 113687 (2025). DOI:10.1016/j.jconrel.2025.113687.
  2. Supporting information: Tables S4–S6, Figures S4–S15 and supplementary methods.