Reference: D-041

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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CAS # 100743-65-5
Name: 4‐(3,5‐ Dibromo‐2‐pyridylazo)‐ N‐ethyl‐ N‐(3‐ sulfopropyl) aniline, monosodium salt, monohydrate
Molecular formula: C₁₆H₁₇Br₂N₄NaO₃S.H₂O
Appearance: Dark reddish brown powder
Molecular weight: 546.21
Solubility in water: Passed test (clear, red)
Molar absorptivity: > 32 000 (around 503 nm)
Molar absorptivity Cu(II) chelate: > 124 000 (637 nm)
Storage: 2 – 8 °C. Protect from moisture and light
Stability: At least 12 months at 2 – 8 °C

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3,5-DiBr-PAESA

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