Semi-Volatile Standard Back Catalog number: 94152 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2041.4-50-ME Perfluorobutane sulfonic acid, 50ug/ml, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 59933-66-3 Price on request 10974.6-100-AN Para-phenylenediamine,100 µg/mL,acetonitrile,1mL, Price on request T767413 1H-1,2,4-Triazole-3,5-13C2, 5mg Price on request