Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3523.13-100-CY Trifluralin, 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1582-09-8 Price on request GA09011134LM Benzidine D8, 500µg/mL in Acetonitrile:Methanol, 1ml Price on request 79066 2,3,5-Trichlorophenol Price on request