Methoprotryne, 100µg/ml in Acetonitrile, 1ml Back Catalog number: S-12401A1-1ML Availability: In the manufacturer's stock Price on request - + Recommended 9386.21-K-ME (±)-trans-11-Nor-9-carboxy-delta-9-THC, 1000µg/ml in MeOH, 1ml Price on request 95227 EPA Method 525 Internals & Surrogates Price on request 11277.19-100-AN Pyridaben-d13 (4-tert-butyl-d9-benzyl-2,3,5,6-d4),100 µg/mL,acetonitrile,1mL, Price on request