606 en · NOUN
Etymology
It was the 606th chemical studied by Ehrlich in his quest for an antisyphilitic drug.
Meanings
-
(uncountable) Arsphenamine.
At any rate I had told her what I knew about 606, and asked Akkad to send her to a specialist.
1974, Lawrence Durrell, Monsieur, Faber & Faber, published 1992, page 108:Within these last five years we have discovered the spirochaeta pallida, the Wasserman reaction and dioxydiamidoarsenobenzol or 606; […]
1910, The Journal of Ophthalmology and Oto-laryngology, volume 4: