QC Standard 4 Back Catalog number: 53087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-537APDS EPA Method 537 Native Primary Std (br/l mix), 2µg/ml in MeOH, 1,2ml Price on request M831502 Mycophenolic Acid-d3, 1mg Price on request 79025 Anthracene Price on request