Heptenophos Back Catalog number: X9231 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11724.12-100-IO 2,3,3',5',6-Pentachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 2249.19-100-AN Diacetoxyscirpenol, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 2270-40-8 Price on request 19317 EPA Method 625 Base/Neutrals Mix #4 Price on request