EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3520.10-100-AN Trichloronate Price on request XA13213100AL 17-beta-Estradiol, 100µg/mL in Acetonitrile, 1ml Price on request 0732.12-K-IO Acenaphthene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 83-32-9 Price on request