Tetra-n-butyltin, 1000 µg/ml, Methanol, 5ml

d3 C21Monoaromatic Sterane (5 alpha(H)/5ß(H)), 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Norcodeine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 467-15-2

EPA Method 533 Native Primary Std. (br/linear mix), 500ng/ml in MeOH, 1,2ml