2,3,3',4,4',5,5'-Heptachlorobiphenyl, 5mg Back Catalog number: C-189N Availability: In the manufacturer's stock Price on request - + Recommended 674743 PSA-C18-Mix 2 Price on request 30087 EPA Method 507/525 Analyte Mix #6 Price on request C300800-1G Chitin, Practical Grade, 1g Price on request