Lake Michigan fish tissue -Org. contaminants, 5x8g Back Catalog number: NIST-1947 Availability: In the manufacturer's stock Price on request - + Recommended 72270 Thymine Price on request 8914.14-100-T 6-Methyl-2',3,4,4'-tetrachlorodiphenylmethane Price on request 94044 Volatile Standard Price on request