1H-Pyrazolo(3,4-b)pyridine-5-carboxylic acid, 4-(butylamino)-1-ethyl-, ethyl ester 34966-41-1 4-Butylamino-1-ethyl-lH-pyrazolo-(3,4-b)pyridine-5-carboxylic acid ethyl ester CARTAZOLATE Cartazolate [USAN:INN] Cartazolato [INN-Spanish] Cartazolatum [INN-Latin] Ethyl 4-(butylamino)-1-ethyl-1H-pyrazolo(3,4-b)-pyridine-5-carboxylate NSC 166873 SQ 65396