1-(Heptafluorobutyryl)imidazole, 1ml Back Catalog number: 675965 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 19112 EPA Method 624 Surrogate Standard Price on request 54256 Ammonium (NH4+) Price on request 2524.8-500MG Acetaminophene (Paracetamol), neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 103-90-2 Price on request