Bisphenol S, 100µg/ml in Acetonitrile, 1ml

(+/-)-Citalopram-d4 hydrobromide (4-fluorophenyl-d4), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1219803-58-3

4-n-Nonylphenol, 100 µg/ml, Acetonitrile, 1ml

1-Methyl-4-nitroso-piperazine, 50mg