EPA Method 8330 Analyte Back Catalog number: 79075 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9190.7-100-ME Theophylline-d6 (dimethyl-d6), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 11790-39-8 Price on request C10665200 Brilliant Blue FCF (E133), certified, 0.25g Price on request 685499 Stearyl stearate, 100mg Price on request