EPA Method 1666Labeled Standard Back Catalog number: 82493 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8934.11-100-ME Amidotriazoic acid-d6, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 3911.18-1G Red 2G, Acid red 1 (E 128), neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 3734-67-6 Price on request 70033 Benzo(k)fluoranthene Price on request