Hexachloro-1,3-butadiene-13C4,neat,neat,10mg,

C27 Ring-C Monoaromatic sterane (5ß(H),10ß(CH3)/5 alpha(H),10ß(CH3)), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 98819-92-2 / 98819-91-1

Benzoic acid

rac N-Desmethyl Tramadol-d3 Hydrochloride, 1mg