EPA Method 624Mix #1 - Purgeables Back Catalog number: 40021 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 678407 Fenamiphos-sulfoxide, 100 µg/ml, Acetonitrile, 1 Price on request CFN99171 Astragaloside IV, >98%, 20mg Price on request 3985.8-K-CY cis-1,2,trans-1,4-1,2,4-Trimethylcyclopentane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 4850-28-6 Price on request