Task: Please answer the following question about the molecule with SMILES O=[N+]([O-])OC[C@H](O[N+](=O)[O-])[C@@H](CO[N+](=O)[O-])O[N+](=O)[O-].
Description: Please describe this drug.
Completion: Erythrityl tetranitrate is erythritol in which each of the hydroxy groups has been converted to the corresponding nitrate ester. It is a vasodilator with properties similar to nitroglycerin. It is usually used diluted with lactose or other suitable inert excipients, in order to minimise the risk of explosion; undiluted erythrityl tetranitrate can be exploded by percussion or excessive heat. It has a role as a vasodilator agent and an explosive. It is functionally related to an erythritol.
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
O=[N+]([O-])OC[C@H](O[N+](=O)[O-])[C@@H](CO[N+](=O)[O-])O[N+](=O)[O-]
C([C@H]([C@H](CO[N+](=O)[O-])O[N+](=O)[O-])O[N+](=O)[O-])O[N+](=O)[O-]
[(2R,3S)-1,3,4-trinitrooxybutan-2-yl]nitrate
Please describe this drug.