N-Desmethyl-cis-tramadol.HCl, 10mg

4-Methylguaiacol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93-51-6

2,3,3',4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

pH 9.0 Standard @ 25°C