Question: Please describe this drug.
Constraint: The Compound can be represented with the SMILES O=P(O)(O)C(Cl)(Cl)P(=O)(O)O.
Answer: A diphosphonate which affects calcium metabolism. It inhibits bone resorption and soft tissue calcification.
{#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(Cl)(Cl)P(=O)(O)O
C(P(=O)(O)O)(P(=O)(O)O)(Cl)Cl
[dichloro(phosphono)methyl]phosphonicacid
Please describe this drug.