prontosil
noun
pron·to·sil
ˈprän-tə-ˌsil 
: any of three sulfonamide drugs:
a
: a red azo dye C12H13N5O2S that was the first sulfa drug tested clinically
called also prontosil rubrum
b
c
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“Prontosil.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/prontosil. Accessed 1 Dec. 2024.
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