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82973 Sigma-Aldrich

4-(2-Pyridylazo)resorcinol monosodium salt hydrate

purum p.a., for complexometry, ≥98.0% (calc. based on dry substance, UV)

Synonym: PAR-Na

  • CAS Number 16593-81-0

  • Empirical Formula (Hill Notation) C11H8N3NaO2 · xH2O

  • Molecular Weight 237.19 (anhydrous basis)

  •  Beilstein Registry Number 3825637

  •  MDL number MFCD00041025

  •  PubChem Substance ID 329769274

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Indicators, Metal Titration Indicators, Titration More...
grade   for complexometry
InChI Key   KZRPHCQLJZXMJV-IERUDJENSA-M
grade   purum p.a.
assay   ≥98.0% (calc. based on dry substance, UV)
impurities   8-10% water

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Same product — same quality — now Sigma-Aldrich brand

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WGK Germany 
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178268 4-(2-Pyridylazo)resorcinol monosodium salt hydrate

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