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alpha-Naphtholphthalein

Product Code. 11329597
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Product Code. 11329597 Supplier Thermo Scientific Alfa Aesar Supplier No. 041221.03
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Description

Indicator in 0.1% or 0.04% alcohol solution | CAS: 596-01-0 | C28H18O4 | 418.448 g/mol

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.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 596-01-0
Molecular Formula C28H18O4
Molecular Weight (g/mol) 418.448
MDL Number MFCD00036202
InChI Key HQHBAGKIEAOSNM-UHFFFAOYSA-N
Synonym alpha-naphtholphthalein, naphtholphthalein, 1-naphtholphthalein, a-naphtholphthalein, 3,3-bis 4-hydroxynaphthalen-1-yl isobenzofuran-1 3h-one, unii-2qeg1706nn, 1 3h-isobenzofuranone, 3,3-bis 4-hydroxy-1-naphthalenyl, naphtholphthalein blue, alpha-naphtholphtalein, 3,3-bis 4-hydroxy-1-naphthyl phthalide
PubChem CID 68993
IUPAC Name 3,3-bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1-one
SMILES C1=CC=C2C(=C1)C(=CC=C2O)C3(C4=CC=CC=C4C(=O)O3)C5=CC=C(C6=CC=CC=C65)O

Specifications

Melting Point 238°C to 240°C
Color Brown
Quantity 1 g
Merck Index 14,6389
Solubility Information Soluble in ethanol. Insoluble in water.
Formula Weight 418.45
Physical Form Powder
Chemical Name or Material alpha-Naphtholphthalein

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