Quinoxaline-2-carboxylic acid Back Catalog number: 91819 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677925 Pyrifenox, 10 µg/ml, Ethyl acetate, 10ml Price on request 92482 Alcohol Mix 3 Price on request 54182 Total Dissolved Solids (TDS) Price on request