rac 3,4-Dihydroxymandelic Acid, 500mg

Dibenz[a,j]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 224-41-9

2 alpha,17 alpha(H),21ß(H)-2-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 126208-29-7

1,1-Dichloro-2,2-bis(4-Chlorophenyl-d4)ethylene, 100µg/mL in IO, 1ml