ammonia (13n) ammonia (13n) ammonia (13n) (ammonia with radioisotope nitrogen-13) is a medication for diagnostic positron emission tomography (pet) imaging of the myocardium. ammonia (13n)clinical dataatc codev09gx05 (who) legal statuslegal status us: ℞-only identifiers iupac name (13n)azane cas number34819-78-8pubchem cid119432drugbankdb09326chemspider106665unii9oqo0e343zchebichebi:135980chemblchembl1201189comptox dashboard (epa)dtxsid50930606 chemical and physical dataformulah33d model (jsmol)interactive image smiles inchi inchi=1s/h3n/h1h3/i1-1key:qgzkdvfqnngyky-bjudxgsmsa-n