Zaggout, Farid R. published the artcileBehavior of α-Naphtholphthalein as Analytical pH-Indicator Entrapped into Sol Gel Matrix, Computed Properties of 596-01-0, the publication is Journal of Dispersion Science and Technology (2008), 29(1), 58-62, database is CAplus.
This study considers the nature of interactions between the sol gel derived inorganic matrix and α-naphtholphthalein pH-indicator, the method is based on the phys. entrapment of the indicator mols. in sol gel matrix, the immobilized α-naphtholphthalein pH-indicator shows similar behavior as its solution counterpart. The UV/VIS spectra indicate that the α-naphtholphthalein retains its structure during the sol gel reactions in terms of response to pH. α-Naphtholphthalein can be regarded as uniformly distributed in the sol gel matrix. This observation has been confirmed using polarized microscopy.
Journal of Dispersion Science and Technology published new progress about 596-01-0. 596-01-0 belongs to benzofurans, auxiliary class Benzofuran,Naphthalene,Alcohol,Ester, name is 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one, and the molecular formula is C7H3Cl2NO, Computed Properties of 596-01-0.
Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem