18921-65-8 Aspartic acid, N-[p-[[(2,4-diamino-6-quinazolinyl)methyl]amino]benzoyl]-, L- L-Aspartic acid, N-[4-[[(2,4-diamino-6-quinazolinyl)methyl]amino]benzoyl]- N-[p-[[(2,4-Diamino-6-quinazolinyl)methyl]amino]benzoyl]-L-aspartic acid NSC112846 Quinaspar