145548-82-9 4-Ethyl-4,7-dihydro-1(2)-R-1(2)H-triazolo(4,5-h)quinolin-7-one-6-carboxylic acid 4-Ethyl-4,7-dihydrotriazolo(4,5-h)quinolin-7-one-6-carboxylic acid Edtqca