Citrate buffer solution has a 1.0M concentration at a pH of 6.0. Citrate is used as an anticoagulant, a biological buffer, and is often prepared for antigen retrieval of tissue samples. The solution is designed to break protein cross-links, unmasking antigens and epitopes in formalin-fixed and paraffin embedded tissue sections, resulting in enhanced stain intensity of antibodies. Citrate has as a calcium chelator that forms complexes to disrupt the tendency of blood to clot. For laboratory use only. Not fit for agricultural, household, clinical use or human consumption. Molecular Weight : 192.124, Molecular Formula : C6H8O7, pH : 6, Purity : >99.5%, Solubility : Water:73 g/100 ml, Appearance Form : Liquid, Appearance Color : Clear, Melting Point : 153C, Density : 1.665 g/cm3, 500ml