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 DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request 57216 Sulfur (S) Price on request 50414 Metals Mix 5C Price on request