Bayer, is it that company which made Zyklon B to eliminate Jews in WW2 gas chambers? I'm always astounded how are these companies still around.
In 1925 Bayer merged with five other German companies to form IG Farben
IG Farben the made Zyklon B, and as a result it got split up after the war, into it's original companies, one of them bayer.
So, yes, you are mostly correct.