Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72501 2-Bromoacetophenone Price on request 94213 Herbicide Acid Standard Price on request 10975.6-K-ME Aniline-d5,1000 µg/mL,MeOH,1mL, Price on request