Task: Answer the multiple-choice question.
Question: Which drug has a 6.673\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) [S-]C(=Nc1ccc(Cl)cc1)N[n+]1ccccc1
b) O=C(OCC(=O)N1CCCC1)c1c2c(nc3ccccc13)CCCCC2
Answer: a. [S-]C(=Nc1ccc(Cl)cc1)N[n+]1ccccc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
[S-]C(=Nc1ccc(Cl)cc1)N[n+]1ccccc1
[S-]C(=Nc1ccc(Cl)cc1)N[n+]1ccccc1
N'-(4-chlorophenyl)-N-pyridin-1-ium-1-ylcarbamimidothioate