EPA Method 607 - Nitrosamines Back Catalog number: 40012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678352 Tefluthrin, 100 µg/ml, Ethyl acetate, 1ml Price on request 678535 4-Chlorophenoxyacetic acid, 100 µg/ml, Acetonitri Price on request 3603.32-5UG 17ß(H),21 alpha(H)-(22RS)-Bishomohopane , neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. Price on request