Thallium (Tl)

2,2',4,4'-Tetrabromo-5-methoxydiphenyl ether, 1.2ml x 50ug/ml, nonane

Arsenic (As)

2-Methoxyphenol-3,4,5,6-d4, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 7329-52-4