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CAS 132-31-0

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Indophenol blue

Description:
Indophenol blue is a synthetic dye and a member of the indophenol family, characterized by its vibrant blue color. It is commonly used as a pH indicator due to its ability to change color in response to varying pH levels, typically transitioning from blue in alkaline conditions to yellow in acidic environments. The compound is soluble in water and exhibits a strong absorbance in the visible spectrum, making it useful in various analytical applications, including spectrophotometry. Indophenol blue is also utilized in biological and biochemical assays, particularly in the determination of protein concentrations. Its stability and relatively low toxicity make it suitable for laboratory use, although care should be taken to avoid exposure to concentrated solutions. Additionally, the compound's structure features a conjugated system that contributes to its color properties, and it can participate in redox reactions, which further expands its utility in chemical research and applications.
Formula:C18H16N2O
InChI:InChI=1/C18H16N2O/c1-20(2)14-9-7-13(8-10-14)19-17-11-12-18(21)16-6-4-3-5-15(16)17/h3-12H,1-2H3/b19-17+
InChI key:InChIKey=VRZJGENLTNRAIG-UHFFFAOYSA-N
SMILES:N(=C1C=2C(C(=O)C=C1)=CC=CC2)C3=CC=C(N(C)C)C=C3
Synonyms:
  • (4E)-4-{[4-(dimethylamino)phenyl]imino}naphthalen-1(4H)-one
  • 1(4H)-Naphthalenone, 4-[[4-(dimethylamino)phenyl]imino]-
  • 1(4H)-Naphthalenone, 4-[[p-(dimethylamino)phenyl]imino]-
  • 1,4-Naphthoquinone imine, N-[p-(dimethylamino)phenyl]-
  • 4-[[4-(Dimethylamino)phenyl]imino]-1(4H)-naphthalenone
  • Indophenol blue cyan
  • N-(p-Dimethylamino)phenyl-1,4-naphthoquinoneimine
  • N-(p-Dimethylaminophenyl)-1,4-naphthoquinoneimine
  • NSC 132125
  • Naphthol blue
  • See more synonyms
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