DL-alpha-Tocopherol, 500mg

1,2,3,4-Tetrahydro-3,4-dimethylchrysene, 25µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.

Pentachlorophenol, 10µg/mL in MeOH, 10ml

4-n-Octylphenol monoethoxylate,10 µg/mL,acetone,1mL,