1, 5-Trimethylenetetrazole 5817-87-8 5H-Pyrrolotetrazole, 6,7-dihydro- 6,7-Dihydro-5H-pyrrolo[1,2-d]tetraazole 6,7-Dihydro-5H-pyrrolotetrazole AIDS-126676 AIDS126676 NSC122381 Trimethylenetetrazol Trimethylenetetrazole