Tri-p-tolyl phosphate, 1.2ml x 50ug/ml, toluene Back Catalog number: TPTP Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended M6TBEP Tris(2-butoxy-[13C2]-ethyl) phosphate, 1.2ml x 50ug/ml, toluene Price on request 72978 Fipronil sulfone, 1000µg/ml in Acetonitrile, 1ml Price on request 30031 EPA Method 525 - Internal Standard Price on request