WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml Back Catalog number: P48-W-ES Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 96450 1,2,3-Trichloropropane Price on request L20800000AL Fluorene, 10µg/ml in Acetonitrile, 10ml Price on request 680172 Isobutylparaben, 100mg Price on request