Ibuprofen, 100 µg/ml, Methanol, 1ml Back Catalog number: 681069 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 71907 1,1-Difluoroethylene, 1000µg/ml in MeOH, 1ml Price on request 94509 EPA Method 8151 Standard Price on request 91179 Pesticide Standard Price on request