Methylglycol chitosan has been used as a positive colloid in a colloidal titration process in a study that assessed the role of surface charge in germination of Bacillus megaterium spores. 1 It has also been used in a study to investigate the genotoxicity and cytotoxicity of 2-hydroxyethyl methacrylate. 2Assay: ≥70% Solubility: 10mg/ml, H2OStorage and Stability:May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.