QC Standard 1 Back Catalog number: 53084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11191.22-100-ME Sildenafil-d8 (piperazine-d8),100 µg/mL,MeOH,1mL Price on request 10905.20-K-AN Ethyl stearate-d5,1000 µg/mL,acetonitrile,1mL Price on request M4-8:2DIPAP Sodium bis(1H,1H,2H,2H-[1,2-13C2]perfluorodecyl)phosphate, 50µg/ml in MeOH, 1,2ml Price on request