COD Calibration Standard Back Catalog number: 50451 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673968 1-Naphthylacetic acid, 500mg Price on request 680783 sec-Butylparaben, 100mg Price on request DF-1367-S 1,3,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request