Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11853.19-100-ME Propargite,100 µg/mL ,MeOH,1mL, Price on request 98737 n-Hexadecane Price on request 1579.4-K-ME Metformin hydrochloride, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1115-70-4 Price on request