Piperonyl butoxide, 1000µg/ml in MeOH, 1ml Back Catalog number: 71280 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98861 Formaldehyde-DNPH Level 4 (2ug/mL) Price on request 677419 1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone, 50mg Price on request 675935 D3-Alachlor ESA sodium salt, 10mg Price on request