Internal standard 3, 2000g/ml in MeOH, 1ml Back Catalog number: 30069 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 0768.16-500-IO 3,6-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1576-67-6 Price on request 680645 Pyrifluquinazon, 50mg Price on request 2127.12-K-IOX5 Arochlor 1248 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 12672-29-6 Price on request