EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674607 Cloprop, 100mg Price on request 9335.17-100-IO Acetyl cedrene , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 32388-55-9 Price on request 10261.19-K-ME Tetrabenazine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-46-8 Price on request