【化】 异烟酸; γ-吡啶甲酸

isonicotinic acid hydrazide

isonicotinic anhydride

isoniazid [=isonicotinic acid hydrazide; INH]

isonicotinic hydrazide acid

isonicotinic acid【有化】

isonicotinic acid

isonicotinic acid

isonicotinic acid