Cryopreservation of Microbial Stocks: Used to prepare long-term freezer stocks of Escherichia coli, other bacteria, and yeast at −80°C (final 15–25% 20% (v/v) Glycerol).

Preparation/Storage of Electrocompetent Cells: Used to wash and store electrocompetent Escherichia coli (commonly diluted to 10% glycerol for final use).

Enzyme and Protein Stabilization: Added to purified enzymes/proteins to enhance stability and reduce freeze–thaw damage (20% (v/v) Glycerol used to achieve typical 5–50% final glycerol).

Sample Density for Gel Loading: Increases sample density for DNA/RNA/protein loading onto gels; mixed with samples or used to prepare loading dyes.

Gradient Centrifugation: Component for simple glycerol gradients (e.g., 10–40%) to separate macromolecular complexes.

PCR Additive for Difficult Templates: Added at low percentages to improve amplification of GC‑rich targets by stabilizing polymerase and altering DNA melting behavior.

Restriction/Ligation Reaction Support: Helps maintain enzyme activity and prevent freezing of small-volume reactions when used at low percentages.

Carbon Source in Microbial Media: Supplement for culture media as a metabolizable carbon source for organisms like Escherichia coli (diluted from 20% (v/v) Glycerol to appropriate final concentrations).