Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8721.22-10MG Di-n-heptyl phthalate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 3648-21-3 Price on request 682562 Acetophenone, 1000mg Price on request 3937.3-1ML cis-1,3-Dichloropropene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 10061-01-5 Price on request