GPC Calibration Mix #1 Back Catalog number: 20041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90755 1,4-Dichlorobenzene-d4 Price on request 679904 S-Metolachlor, 100 µg/ml, Acetone, 1ml Price on request 677545 cis-Permethrin, 100 µg/ml, Acetone, 1ml Price on request