77889 Fluka

3-[3-Hydroxy-4-(5-nitro-2-pyridylazo)-N-propylanilino]propanesulfonic acid disodium salt dihydrate

purum, ≥97.0% (HPLC)

Synonym: 2-(5-Nitro-2-pyridylazo)-5-(N-propyl-3-sulfopropylamino)phenol disodium salt, Nitro-PAPS

  • CAS Number 143205-66-7

  • Empirical Formula (Hill Notation) C17H19N5Na2O6S · 2H2O

  • Molecular Weight 503.44

  •  MDL number MFCD00037623

  •  PubChem Substance ID 24887142


grade   purum
assay   ≥97.0% (HPLC)
impurities   ~10% water


Other Notes

nitro-PAPS is a chromogenic reagent for the colorimetric assay of serum iron and zinc1,2; assay of micro amounts of metals following ion-pair extn. with nitro-PAPS3,4


Bottomless glass bottle. Contents are inside inserted fused cone.

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