CAS 7313-54-4 appears in our catalog under these names: Atrazine-desisopropyl-2-hydroxy, Atrazine-desisopropyl-2-hydroxy 100 µg/mL in Methanol, Atrazine-desisopropyl-2-hydroxy, Concentration: 10.0 µg/ml Solvent: Methanol, Atrazine-desisopropyl-2-hydroxy, Concentration: 100 µg/ml Solvent: Methanol. Offered by: Dr. Ehrenstorfer, HPC Standards. Available pack sizes: 100mg, 1ml, 1x10ml, 1x5ml.