translate English to French: The first two compounds, at a concentration of 7.7 × 10−5 M, were found to have a considerable inhibitory effect while 3,5,3′-triiodothyronine had a very weak effect on the growth of the Gram-positive bacteria examined.
A une concentration de 7.7 × 10−5 M, les deux premiers composés ont une action inhibitrice, tandis que la 3,5,3′-triiodothyronine a très peu d'effet sur la croissance des bactéries Gram-positives étudiées.