Piperonyl butoxide, 1000µg/ml in MeOH, 1ml Back Catalog number: 71280 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680791 Allethrin, 10.0 µg/ml, Acetonitrile, 10ml Price on request 71661 2,3,5,6-Tetrachloroanisole Price on request 22003 EPA Method 8240A Internal Standard Price on request