Internal Standard for AB SIM Back Catalog number: 94516 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70232 N-Nitrosodi-n-propylamine, 1000µg/mL in MeChl, 1ml Price on request 677912 Fenothiocarb, 100 µg/ml, Acetonitrile, 1ml Price on request 683731 beta-Cypermethrin, 10.0 µg/ml, Ethyl acetate, 10 Price on request