Cas No: 9045-22-1 Usage: Generally used as an anticoagulant for blood collection tube in clinical biochemical and emergency biochemical examinations. Its the top choice of anticoagulant for measuring pH, electrolytes, and ionized calcium. Characteristics: Minimal chelation, minimal interference to water and relatively low cation concentration. Production process: Made from heparin sodium through ion exchange. Crude heparin glycolysis-Â Deproteinized-> Oxidative decolorization-resin exchange- Precipitation, Dehydration Drying