Surrogate Standard Back Catalog number: 97935 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679109 4,4'-DDT, 10.0 µg/ml, Cyclohexane, 10ml Price on request 97965 PAH Standard Price on request 684227 N-Nitrosodiisopropylamine, 50mg Price on request