Heptachlor-exo-epoxide (Iso B) 10µg/mL in CY, 10ml Back Catalog number: L14101000CY Availability: In the manufacturer's stock Price on request - + Recommended 93970 EPA Method 632 Spike Standard Price on request 56155 Cesium (Cs) Price on request 8895.6-5ML 1,1-Diethoxyethane, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 105-57-7 Price on request