CAS: 68131-04-4 Molecular Formula: C9H8Na2O4 Molecular Weight (g/mol): 226.139 MDL Number: MFCD00135560 InChI Key: HMGUIQPKFUZDPV-UHFFFAOYSA-L Synonym: humic acid sodium salt,sodium bicyclo 2.2.1 hept-5-ene-2,3-dicarboxylate,sodium humate,disodium bicyclo 2.2.1 hept-5-en-2,3-dicarboxylate,disodium bicyclo 2.2.1 hept-5-ene-2,3-dicarboxylate,bicyclo 2.2.1 hepta-5-ene-2,3-dicarboxylic acid disodium salt PubChem CID: 21908873 IUPAC Name: disodium;bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate SMILES: C1C2C=CC1C(C2C(=O)[O-])C(=O)[O-].[Na+].[Na+]