EPA Method 515.1 Internal Standard Back Catalog number: 31023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CFN98838 Kaempferol, >98%, 20mg Price on request 94789 o-Terphenyl Price on request 3457.10-100 Mirex , 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2385-85-5 Price on request