Internal Standard Back Catalog number: 95665 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679461 4,4'-DDT, 100 µg/ml, Methanol, 1ml Price on request C12253700 7,9-Di-tert-butyl-1-oxaspiro[4,5]deca-6,9-die ne-2,8-dione, 25mg Price on request 2128.12-K-IOX5 Arochlor 1254, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11097-69-1 Price on request