alpha-Naphtholbenzein

Name: alpha-Naphtholbenzein
SKU: A16125.22

CAS: 145-50-6 | C27H18O2 | 374.439 g/mol

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產品號碼 A16125.22

亦稱為 A16125-22

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100 g

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化學識別

CAS145-50-6

IUPAC Name(4E)-4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]-1,4-dihydronaphthalen-1-one

Molecular FormulaC27H18O2

InChI KeyVDDWRTZCUJCDJM-SOYKGTTHSA-N

SMILESOC1=C2C=CC=CC2=C(C=C1)C(\C1=CC=CC=C1)=C1/C=CC(=O)C2=CC=CC=C12

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規格

規格表

FormPowder

Color ChangeOrange @ pH8.2 to blue-green @ pH10.0

Specific Absorbance (E 1%/1cm)≥350

CommentSuitable for use as an indicator

lambda-max (UV-Vis)644-652nm (0.01M NaOH)

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α-Naphtholbenzein is used as a pH indicator. (pH 0.0-0.8/ pH 8.2-10.0).

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
α-Naphtholbenzein is used as a pH indicator. (pH 0.0-0.8/ pH 8.2-10.0).

Solubility
Soluble in ethanol, acetic acid and acetone. Insoluble in water.

Notes
Incompatible with strong oxidizing agents, acids, water reactive substances, azo, diazo, hydrazines, metals, nitrides, peroxides, hydroperoxides, epoxides and reducing agents.

RUO – Research Use Only

General References:

Acid-base indicator: pH 0.0 - 0.8; 8.2 - 10.0.
Wang, J.; Xu, C.; Song, Q. Rapid and Environmentally Friendly Three-Dimensional-Printed Flow Injection Analysis System for the Determination of the Acid Number in Thermal Conductive Oil. Energy Fuels 2015, 29 (2), 1040-1044.
Özçeşmeci, M. Synthesis, photophysical and photochemical properties of metal-free and zinc(II) phthalocyanines bearing alpha-naphtholbenzein units. J. Organomet. Chem. 2014, 767, 16-21.