Task: Please give me a SMILES based on the description below.
Description: The molecule is a 1,1-bis(phosphonic acid) consisting of methane substituted by two phosphonic acid groups. It has a role as a bone density conservation agent and a chelator.
Result: O=P(O)(O)CP(=O)(O)O
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
O=P(O)(O)CP(=O)(O)O
phosphonomethylphosphonicacid
The molecule is a 1,1-bis(phosphonic acid) consisting of methane substituted by two phosphonic acid groups. It has a role as a bone density conservation agent and a chelator.