Task: Answer the MCQ question.
Query: What is the hERG inhibition at a concentration of 1uM of a compound with the SMILES O=c1[nH]c2nc(SCc3ccccc3)ncc2c(=O)n1-c1ccc(Cl)cc1?
Constraint: You must return none, one or more options from a, b, c, or d without using any other words.
Options:
(a) 9.539
(b) -0.194
(c) 14.508
(d) 16.424
Answer: a. 9.539\%.
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: What is the {herg_central_at_1uM__names__noun} of a {#compound|drug!} with the {SMILES__description} {SMILES#}?
Constraint: You must return none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{herg_central_at_1uM%SMILES%}
Answer: {%multiple_choice_result}. {herg_central_at_1uM#}{herg_central_at_1uM__units}.
O=c1[nH]c2nc(SCc3ccccc3)ncc2c(=O)n1-c1ccc(Cl)cc1
O=c1[nH]c2nc(SCc3ccccc3)ncc2c(=O)n1-c1ccc(Cl)cc1
2-benzylsulfanyl-6-(4-chlorophenyl)-8H-pyrimido[4,5-d]pyrimidine-5,7-dione