Method 508 Analytes Back Catalog number: 97495 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675248 Proquinazid, 100 µg/ml, Acetonitrile, 5ml Price on request 680443 beta-HCH, 100 µg/ml, Methanol, 1ml Price on request 70401 o-Toluidine Price on request