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CAS 101-15-5

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4-[(4-Amino-3-methylphenyl)imino]-2,5-cyclohexadien-1-one

Description:
The chemical substance known as "4-[(4-Amino-3-methylphenyl)imino]-2,5-cyclohexadien-1-one," with the CAS number 101-15-5, is commonly referred to as "Methyl Red." It is an azo dye that exhibits a distinctive red color in acidic conditions and turns yellow in neutral to alkaline environments, making it a useful pH indicator. The compound has a molecular formula that reflects its complex structure, which includes an amino group and a cyclohexadienone moiety. Methyl Red is soluble in water and organic solvents, and it is often utilized in various applications, including biological staining and as a pH indicator in titrations. Its ability to change color at specific pH levels is attributed to the protonation and deprotonation of its functional groups. Additionally, Methyl Red has been studied for its potential applications in the fields of biochemistry and analytical chemistry, although safety precautions are necessary due to its classification as a potential carcinogen.
Formula:C13H12N2O
InChI:InChI=1S/C13H12N2O/c1-9-8-11(4-7-13(9)14)15-10-2-5-12(16)6-3-10/h2-8H,14H2,1H3
InChI key:InChIKey=RWIMGHAFJNQGDH-UHFFFAOYSA-N
SMILES:N(C1=CC(C)=C(N)C=C1)=C2C=CC(=O)C=C2
Synonyms:
  • Indo-o-toluidine
  • Indotoluidine
  • 4-[(4-Amino-3-methylphenyl)imino]-2,5-cyclohexadien-1-one
  • 2,5-Cyclohexadien-1-one, 4-[(4-amino-3-methylphenyl)imino]-
  • Indoaniline, 3′-methyl-
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