2,2-Dimethyl-2H,3H,4H,5H,6H-naphtho[1,2-b]pyran-5,6-dione

sl 11001 ; nsc 629749 ; arq 501 ; &beta ; -lapachone ; β-lapachone (90%) ; 2,2-dimethyl-3,4-dihydrobenzo[h]chromene-5,6-quinone ; arq-501 (beta lapachone) ; b-lapachone ; beta-lapachone ; 2,2-dimethyl-3,4-dihydrobenzo[h]chromene-5,6-dione ; nsc 26326