[A16125] CAS 145-50-6 | alpha-Naphtholbenzein | Alfa
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Brand: Alfa Aesar
145-50-6 | C27H18O2 | (4E)-4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]naphthalen-1-one
Chemical Identifiers
CAS
145-50-6
Molecular Weight (g/mol)
374.44
Synonym
(4E)-4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]naphthalen-1-one
SMILES
OC1=C2C=CC=CC2=C(C=C1)C(C1=CC=CC=C1)=C1/C=CC(=O)C2=CC=CC=C12
InChI Key
VDDWRTZCUJCDJM-SOYKGTTHSA-N
Molecular Formula
C27H18O2
IUPAC Name
(4E)-4-[(4-hydroxynaphthalen-1-yl)(phenyl)methylidene]-1,4-dihydronaphthalen-1-one
Specifications
Form
Powder
Color Change
Orange @ pH8.2 to blue-green @ pH10.0
Specific Absorbance (E 1%/1cm)
≥350
Comment
Suitable for use as an indicator
lambda-max (UV-Vis)
644-652nm (0.01M NaOH)
설명
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).
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.
Other References:
Beilstein:3471575
GHS Hazard and Precautionary Statements
Hazard Statements:H315-H319-H335
GHS H StatementH315-H319-H335Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.
Precautionary Statements:P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
Risk & Safety
TSCA:Yes
경고:RUO – Research Use Only
CAS145-50-6FORMULAC27H18O2EINECS205-656-3MDLMFCD00078492
| Pakage | 100g, 25g, 5g |
|---|---|
| brand | Alfa Aesar |
