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arsphenamine

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WordReference Random House Unabridged Dictionary of American English © 2026

ars•phen•a•mine n. [Pharm.]

Drugsa yellow, crystalline powder, C₁₂H₁₂N₂O₂As₂·2HCl·2H₂O, formerly used to treat diseases caused by spirochete organisms, esp. syphilis and trench mouth: first known as "606.''

ars(enic) + phen(yl) + amine 1915–20

'arsphenamine' also found in these entries (note: many are not synonyms or translations):

Salvarsan - 606 - sulfarsphenamine

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