DL-Hexanedioic acid, 2-[[4-[[(2,4-diamino-5-chloro-6-quinazolinyl)methyl]amino]benzoyl]amino]-, hydrate (5:2), (+-)- Hexanedioic acid, 2-[[4-[[(2,4-diamino-5-chloro-6-quinazolinyl)methyl]amino]benzoyl]amino]-, (.+-.)- NSC186780