Acetal Back Catalog number: 71919 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2293.9-1G Trimellitic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 528-44-9 Price on request 18000-0568-100AN5 Guanylurea, 100µg/ml in Acetonitrile, 5ml Price on request 92263 EPA Method 8270 PAH Standard Price on request