6937-66-2 Bis(1,3,7-trimethyl-8-xanthinyl)mercury Mercuric-8,8-dicaffeine Mercury, bis(1,2,3,6-tetrahydro-1,3,7-trimethyl-2,6-dioxopurin-8-yl)- Mercury, bis(1,3,7-trimethyl-8-xanthinyl)- NSC39260