EPA Method 515.1 Surrogate Standard Back Catalog number: 30022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3902.40-5MG Astaxanthin, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 472-61-7 Price on request 0301.20-200-T 7,12-Dimethylbenz[a]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 57-97-6 Price on request 72993 Clothianidin, 1000µg/ml in MeOH, 1ml Price on request