Verification II Standard 1 Back Catalog number: 52019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70470 4-Nitroanisole Price on request C16174400 Phthalic acid, bis-methylglycol ester, certified, 0.25g Price on request C2377 6-Chloro-3(2H)-pyridazinone, >98%, 25g Price on request