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alpha-Naphtholphthalein, Thermo Scientific Chemicals
Indicator in 0.1% or 0.04% alcohol solution
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Catalog number 041221.03
also known as 041221-03
Price (USD)/ Each
48.00
-
Quantity:
1 g
Price (USD)/ Each
48.00
alpha-Naphtholphthalein, Thermo Scientific Chemicals
Catalog number041221.03
Price (USD)/ Each
48.00
-
Chemical Identifiers
CAS596-01-0
IUPAC Name3,3-bis(4-hydroxynaphthalen-1-yl)-1,3-dihydro-2-benzofuran-1-one
Molecular FormulaC28H18O4
InChI KeyHQHBAGKIEAOSNM-UHFFFAOYSA-N
SMILESOC1=C2C=CC=CC2=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=C2C=CC=CC2=C(O)C=C1
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Specifications
Specification Sheet
Specification SheetAppearance (Color)Pink to brown
Color ChangeFrom pH 7.3 ( Pinkish - yellow) to pH 8.7 ( greenish - blue)
Specific Absorbance (E 1%/1cm)> 550 (in 0.1 N NaOH, at Lambda max)
FormPowder
Indicator in 0.1% or 0.04% alcohol solution.α-Naphtholphthalein is used as a pH indicator and operates in the pH ranges between 7.3 and 8.7. It is also used in the designing of optical carbon dioxide sensor based on fluorescence intensity.
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.
RUO – Research Use Only