1H-Indazolin-3-one, 6-amino-, dihydrochloride 3H-Indazol-3-one, 6-amino-1,2-dihydro-, dihydrochloride 55207-49-3 6-Amino-3-indazolinone dihydrochloride NSC87551 WLN: T56 BMMV FU HUTJ HZ &GH 2