NSC 405020 25MG. NSC 405020, A potent MT1-MMP inhibitor, CAS Number: 7497-07-6, Molecular Formula: C12H15Cl2NO, Molecular Weight: 260. 16, Purity: greater than or equal to 98% by HPLC, Appearance: Off-white solid, Synonym: 3, 4-Dichloro-N-(1-methylbutyl)benzamide, Size: 25MG