Sorachim
Reference: DO-41

3,5-DiBr-PAESA

3,5-DiBr-PAESA 4-(3,5-Bromo-2-pyridylazo)-N-ethyl-N-(3-sulfopropyl)aniline,monosodium salt,monohydrate C16H17Br2N4NaO3S.H2O This compound is used for the detection of Cu(II) and Ag(I) in clinical chemistry reagents. Λ max and absorptivity, respectively 639nm/134,000 and 618nm/80,000
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DESCRIPTION
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  • CAS 100743-65-
  • Name 4-(3,5-dibromo-2-pyridylazo)-N-ethyl-N-sulfopropylaniline monosodium
  • salt,monohydrate
  • Appearance: Dark reddish brown or black purple brown powder
  • Molecular weight: 546.21
  • Molecular formula: C16H17Br2N4NaO3S.H2O
  • Solubility in water: To pass test (clear, red)
  • Molar absorptivity: > 32 000 (around 503 nm)
  • Molar absorptivity (Cu chelate): > 124 000 (637 nm)
  • IR spectrum: Authentic
  • Storage: Store in a cool and dry place. Keep tightly closed. Protect from
  • metal.
  • Stability: At least 1 year at 2 – 8 °C

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