Sulfotep, 100 µg/ml, Ethyl acetate, 1ml Back Catalog number: 677926 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended PCB-ST-A10 Native PCB Stock Solution , 1.2ml , nonane Price on request 93970 EPA Method 632 Spike Standard Price on request 52004 Magnesium Nitrate Modifier Price on request