pH 4.0 Standard @ 25°C Back Catalog number: 59468 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D7-N-MEFOSE-M 2-(N-methyl-d3-perfluoro-1-octanesulfonamido)ethan-d4-ol, 50µg/ml in MeOH, 1,2ml Price on request 57515 Phosphorus (P) Price on request 3472.6-100-CY Pentachloroaniline, 100µg/mL, Solvent-c.hexane, Unit 1mL, # of units-1, Cas.no. 527-20-8 Price on request