H 7 Dihydrochloride108930-17-261 % similar H 8 Dihydrochloride113276-94-149 % similar H-9 Dihydrochloride116700-36-848 % similar 5-Isoquinolinesulfonic acid27655-40-941 % similar 5-Isoquinolinesulfonyl chloride84468-15-541 % similar Kn-62127191-97-336 % similar H-89127243-85-035 % similar 3-Methyl-1-(phenylmethyl)piperazine3138-90-732 % similar 5-Aminoisoquinoline1125-60-630 % similar 5-Hydroxyisoquinoline2439-04-530 % similar