It is cyanide of cacodyl, and I have carried that small flask of it about with me for months.
"Raffles" by E. W. Hornung
The formula for cyanide of cacodyl is 'Me-2CY.
"Average Jones" by Samuel Hopkins Adams
The cacodylates, although formerly employed in the treatment of phthisis, should be used with the utmost caution.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
The dimethyl arsine (or cacodyl) compounds have been most studied.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6" by Various