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alpha-Naphtholbenzein

Product Code. 11483157
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Product Code. 11483157 Supplier Thermo Scientific Alfa Aesar Supplier No. A16125.06
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Description

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

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.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 145-50-6
Molecular Formula C27H18O2
Molecular Weight (g/mol) 374.439
MDL Number MFCD00078492
InChI Key VDDWRTZCUJCDJM-PNHLSOANSA-N
PubChem CID 5941340
IUPAC Name (4Z)-4-[(4-hydroxynaphthalen-1-yl)-phenylmethylidene]naphthalen-1-one
SMILES C1=CC=C(C=C1)C(=C2C=CC(=O)C3=CC=CC=C23)C4=CC=C(C5=CC=CC=C54)O

Specifications

Melting Point ∼225°C (decomposition)
Quantity 5 g
Beilstein 3471575
Synonym p-naphtholbenzein, 1-naphtholbenzein, alpha-naphtholbenzein, .alpha.-naphtholbenzein, 4-4-hydroxynaphthyl phenylmethylene naphthalen-1-one, naphtholbenzein, 1 4h-naphthalenone, 4-4-hydroxy-1-naphthalenyl phenylmethylene, 1 4h-naphthalenone,4-4-hydroxy-1-naphthalenyl phenylmethylene, 1 4h-naphthalenone, 4-.alpha.-4-hydroxy-1-naphthyl benzylidene
Solubility Information Soluble in ethanol,acetic acid and acetone. Insoluble in water.
Formula Weight 374.44
Chemical Name or Material alpha-Naphtholbenzein

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