Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10731.21-10MG Biperiden Hydrochloride (Enantiomers) Price on request 3486.11-100-AN Pirimiphos-methyl, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 29232-93-7 Price on request BCR-139 Benzo[ghi]fluoranthene, 100mg Price on request