A 1445 (OTTO) Adenosine, 99% Cas no 58-61-7 - used in medication specifically as an antiarrhythmic agent to treat a number of supraventricular tachycardia. A 1445 (OTTO) Adenosine, 99% Cas no 58-61-7 - used in medication specifically as an antiarrhythmic agent to treat a number of supraventricular tachycardia. It is used to promote thickening of hair for people with thinning hair.