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Synonyms: 1-(2-Pyridylazo)-2-naphthol
1-(2-Pyridylazo)-2-naphthol is an indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition metals.
P 1277 (OTTO) Pan, indicator, 99% Cas 85-85-8 - used as an acid-base indicator. It can form chelates with metal ions, which makes it a valuable indicator in complexometric titrations. PAN is also a spectrophotometric reagent, which can extract metal chelates into an organic solvent.
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