Matrix spike standard

UR-144 N-(5-Hydroxypentyl) metabolite,100 µg/mL,MeOH,1mL,

Di-n-propyl phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 358731-29-0

1,4-Androstadien-4-chloro-17a-methyl-17b-og lignende-3-one, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no.