Internal Standard Back Catalog number: 96651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71843 m-Anisidine Price on request 79372 2,3,5,6-Tetrachloroanisole Price on request 2267.12-100-IO 2,2',3,3',4,4',5-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 35065-30-6 Price on request