[Nifster]

Zyklon B

[normbal]

That’s a BINGO!

“It was manufactured by two German companies: Tesch and Stabenow (which was based in Hamburg) and Degesch (which was based in Dessau). Zyklon“

- from: https://www.britannica.com/science/Zyklon-B

However, according to DuckDuckGo’s AI:

BASF Chemicals in WW2

During World War II, BASF, as part of the conglomerate IG Farben, manufactured a variety of chemicals, including Zyklon B, which was used in the gas chambers of Nazi concentration camps. IG Farben also extensively employed forced and slave labor during this period.