Nitrite (NO2-) as N

1,2,8,9-Tetrachloro(13C12)dibenzo-p-dioxin, 1.2mL x 50ug/mL, toluene

n-Hexatriacontane-d74, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 16416-34-5

Acetylsalicylic acid, 15mg