Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10568.10-K-ME 2-Amino-1-Phenylbutane hydrochloride Price on request 3807.12-K-IO Mono-n-butyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 131-70-4 Price on request 682002 1,4-Dimethoxybenzene, 1000mg Price on request