Piperonyl butoxide, 1000µg/ml in MeOH, 1ml Back Catalog number: 71280 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3129.4-K-IO Tetranoic acid (Butyric), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 107-92-6 Price on request 83548 Formaldehyde-DNPH Price on request 64054 Aroclor 1254 in Transformer Oil Price on request