Question: What is the definition of this compound's USAN stem?
 The Chemical has the SMILES O=P(O)(O)C(O)(Cn1ccnc1)P(=O)(O)O.
Result: calcium metabolism regulators
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
O=P(O)(O)C(O)(Cn1ccnc1)P(=O)(O)O
O=P(O)(O)C(O)(Cn1ccnc1)P(=O)(O)O
(1-hydroxy-1-phosphono-2-imidazol-1-ylethyl)phosphonicacid
What is the definition of this compound's USAN stem?
calcium metabolism regulators