Acids Calibration Level 1 Back Catalog number: 94838 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2126.12-10-IOX5 Arochlor 1242 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 53469-21-9 Price on request 681473 N-Butylbenzenesulfonamide, 100 µg/ml, Acetonitril Price on request 8225.6-100-AN Demeton-S-methyl Price on request