>=98% (HPLC), powder Synonym(s): 5-[[[(3-Phenoxyphenyl)methyl][(1S)-1,2,3,4-tetrahydro-1-naphthalenyl]amino]carbonyl]-1,2,4-benzenetricarboxylic acid sodium salt hydrate Empirical Formula: C 33 H 27 NO 8 • xNa + • yH 2 O CAS number: 565.57 (anhydrous free acid basis) Purity: >=98% (HPLC)