2,3,5,6-Tetrabromo-p-xylene, 50mg Back Catalog number: 682265 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 95227 EPA Method 525 Internals & Surrogates Price on request 71321 Enflurane Price on request 35141 Aldicarb Price on request