1,2,3,4-Tetrachloronaphthalene, 1.2ml x 50ug/ml, nonane Back Catalog number: PN-27S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 81203 EPA Method 8121 Internal Standard Price on request 3658.6-1G 1,3-Dibromobenzene Price on request BR-PFOSK L-PFOSK with branched isomers, 1.2ml x 50ug/ml, methanol Price on request