... carboxylic acid groups.CAS:25513-46-6 γ-PGA has a molecular weights ranging from 50,000 to more than 2 million ... , Ca, Mg, H forms.Applications:γ - PGA and its derivatives have molecular weights ranging from 50,000 to more than 2 million ... Daltons, hence they have wide applications in food industry, cosmetics, health care, water treatment, waste ...