... -1,2,4-tricarboxylic acid Cas:3 7971-36-1 Appearance: slightly yellow transparent liquid Product name:2-Phosphonobutane-1,2 ... ,4-tricarboxylic acidCas:37971-36-1Appearance:slightly yellow transparent liquidPhosphorous acid (as PO3): ... : 1.27 to 1.30Usage: intermediate for pharmaceuticalPackage: 250 kg net plastic drum 2-Phosphonobutane-1,2,4-tricarboxylic acid/37971- ...