Păr rezorcinol

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4-(2-Pyridylazo)resorcinol 96%; CAS Number: 1141-59-9; EC Number: 214-528-6; Synonym: PAR; Linear Formula: C11H9N3O2; find Sigma-Aldrich-323209 .Chemical Name: 4-(2-PYRIDYLAZO)RESORCINOL. Synonyms: PAR;PAR NSC 148355;PAR, Reagent;ParIndicatorGr;PAR,REAGENT,ACS;TIMTEC-BB .Thermo Scientific Dionex 4-(2-Pyridylazo) Resorcinol Monosodium Salt (PAR), 5g is used for postcolumn derivitization of transition metals separated on the .Chemical Name: 4-(2-Pyridylazo)resorcinol. CAS: 1141-59-9. Appearance: Yellowish PAR is a metal indicator and colorimetric reagent for heavy metal.

A very important example is 4-(2-pyridylazo)-resorcinol, PAR. This is an excellent metallochromic indicator and also very useful as a chromogenic agent for the .and log β111, for the system of PAR (ligand L) with Zn2+ and Cd2+ ions and the stability constants 4-(2-Pyridylazo)resorcinol (PAR) has the reactive groups.The metallochromic indicator 4-(2-pyridylazo)resorcinol (PAR) has been used at pH 7.0 to monitor the mercurial-promoted Zn2+ release from Escherichia coli .The metallochromic indicator 4-(2-pyridylazo)resorcinol (PAR) has been used at pH 7.0 to monitor the mercurial-promoted Zn2+ release from Escherichia coli .