Aroclor 1221 & Tetrachloro-m-xylene Back Catalog number: 95402 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70244 Pentafluorobenzene Price on request 677421 1-Naphthol-4-sulfonic acid, 10mg Price on request 92815 Volatile Mix A1, 200µg/ml in MeOH, 1ml Price on request