Atrazine-desisopropyl, 100µg/ml in Acetonitrile, 1ml Back Catalog number: XA10332000AL Availability: In the manufacturer's stock Price on request - + Recommended 9192.10-100-ME (+/-)-Cotinine-d3 (N-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 110952-70-0 Price on request 98131 EPA Method 8141 Standard Rev 1 Price on request 3003.9-K-CY 2,4,4-Trimethylhexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 16747-30-1 Price on request