Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4905-K-ME Catecholamine Mix 2, 1000μg/ml in MeOH, 1ml Price on request 2303.9-1G Azelaic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 123-99-9 Price on request 97299 D-(+)-Arabitol Price on request