EPA Method 8021B Internal Standard Back Catalog number: 19394 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 672880 2-Phenylphenol, 250mg Price on request 679187 Brombuterol hydrochloride, 10mg Price on request 9285.10-100-ME Stavudine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3056-17-5 Price on request