1.0 2010-04-08 22:15:06 UTC 2025-11-19 02:32:34 UTC FDB020548 Sodium dihydrogen citrate Preservative Monosodium citrate, or sodium dihydrogen citrate, is an acid salt with the chemical formula NaH2C6H5O7, or C3H4OH(COOH)2COONa. Since it has two remaining open spots on the citrate anion, it is used as a relatively strong sequestrant. It is used to prevent platelet clumping in blood samples. It is one of the 3 citric acid salts. Bicitra Citric acid, monosodium salt (8CI) Citrofluyl Monosodium citrate Monosodium dihydrogen citrate Sodium dihydrogen citrate C6H8NaO7 215.1133 215.016772285 sodium 2-hydroxypropane-1,2,3-tricarboxylic acid sodium citric acid 18996-35-5 [Na+].OC(=O)CC(O)(CC(O)=O)C(O)=O InChI=1S/C6H8O7.Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);/q;+1 HWPKGOGLCKPRLZ-UHFFFAOYSA-N belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups. Tricarboxylic acids and derivatives Organic compounds Organic acids and derivatives Carboxylic acids and derivatives Tricarboxylic acids and derivatives Aliphatic acyclic compounds Alpha hydroxy acids and derivatives Carbonyl compounds Carboxylic acids Hydrocarbon derivatives Organic alkali metal salts Organic cations Organic oxides Tertiary alcohols Alcohol Aliphatic acyclic compound Alpha-hydroxy acid Carbonyl group Carboxylic acid Hydrocarbon derivative Hydroxy acid Organic alkali metal salt Organic cation Organic oxide Organic oxygen compound Organic salt Organooxygen compound Tertiary alcohol Tricarboxylic acid or derivatives melting_point Mp 212° logp -1.3 ChemAxon pka_strongest_acidic 3.05 ChemAxon pka_strongest_basic -4.2 ChemAxon iupac sodium 2-hydroxypropane-1,2,3-tricarboxylic acid ChemAxon average_mass 215.1133 ChemAxon mono_mass 215.016772285 ChemAxon smiles [Na+].OC(=O)CC(O)(CC(O)=O)C(O)=O ChemAxon formula C6H8NaO7 ChemAxon inchi InChI=1S/C6H8O7.Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);/q;+1 ChemAxon inchikey HWPKGOGLCKPRLZ-UHFFFAOYSA-N ChemAxon polar_surface_area 132.13 ChemAxon refractivity 35.62 ChemAxon polarizability 15.5 ChemAxon rotatable_bond_count 5 ChemAxon acceptor_count 7 ChemAxon donor_count 4 ChemAxon physiological_charge -3 ChemAxon formal_charge 1 ChemAxon Specdb::MsMs 1279381 Specdb::MsMs 1279382 Specdb::MsMs 1279383 odorless