Heptachlor epoxide Back Catalog number: 79433 Availability: In the manufacturer's stock Price on request - + Recommended 8838.8-K-IO 2-t-Butylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 2370.8-K-IO Vanillin, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 121-33-5 Price on request X9086 3,3’-Dimethylbenzidine Price on request