Verification II Standard 2 Back Catalog number: 53020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681604 Dihydroxy quinoxaline, 100mg Price on request 70462 1,3-Dimethyl-2-nitrobenzene Price on request 677550 Etridiazole, 10.0 µg/ml, Cyclohexane, 10ml Price on request