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 91297 EPA Method 525.2 - 526 Internal Standard Price on request 8997.21-K-ME 11-Deoxycortisol, 1000µg/ml in MeOH, 1ml Price on request 96547 EDDP Price on request