EPA Method 8330 Analyte Back Catalog number: 79073 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38233 Ascorbic acid [Vitamin C] Price on request 2942.9-100-NN beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL, Price on request 675971 Cyantraniliprole, 25mg Price on request