Semi-Volatile Standard Back Catalog number: 94549 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95404 Aroclor 1242 & Tetrachloro-m-xylene Price on request 674791 5-Nitroguaiacol sodium salt, 100mg Price on request 10685.12-100-IO 2,2',3,4',5-Pentachlorobiphenyl Price on request