2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene Back Catalog number: PTBX Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 95450 PCB Congeners & Hexachlorobenzene Mix #1 Price on request 93578 Methylamine Price on request 675334 Sulfapyridine, 250mg Price on request