EPA Method 525.2 Standard Back Catalog number: 92694 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2694.29-K-IO 5 alpha(H),17 alpha(H),(20R)-3ß-Acetoxycholest-8(14)-ene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6562-21-6 Price on request 679942 Procaine hydrochloride, 250mg Price on request 73438 9,9-Dimethylfluorene Price on request