4.4'-DDE (13C12), 100µg/ml in n-Nonane, 1,2ml Back Catalog number: S-FC93S-1.2ML Availability: In the manufacturer's stock Price on request - + Recommended 9491.12-K-IO Tri-n-butylphosphate-d27 Price on request XA14102000CY Heptachlor-endo-epoxide (trans-, isomer A), 100 ng/µl, 1ml Price on request S-4367-100-5DC EPA 528 rev. 1.0 Internal Standard Solution 1 100µg/mL in dichloromethane; unit: 1x5mL 3841.8 1,2-Dimethyl-3-nitrobenzene [83-41-0] Price on request