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Alfa Aesar™ alpha-Naphtholbenzein

$44.85 - $453.31

Chemical Identifiers

Chemical Name or Material alpha-Naphtholbenzein
CAS 145-50-6
Molecular Formula C27H18O2
Formula Weight 374.44g/mol
MDL Number MFCD00078492
Beilstein 3471575
Synonym 4-[alpha-(4-Hydroxy-1-naphthyl)benzylidene]naphthalen-1(4H)-one; p-Naphtholbenzein
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1612506

 
alfa aesar™
A16125-06
5g Each for $44.85

AAA1612522

 
alfa aesar™
A16125-22
100g Each for $453.31
Description & Specifications

Specifications

Melting Point ≈225°C (dec.)
Quantity 5g
Chemical Name or Material alpha-Naphtholbenzein
CAS 145-50-6
Molecular Formula C27H18O2
Formula Weight 374.44g/mol
MDL Number MFCD00078492
Beilstein 3471575
Synonym 4-[alpha-(4-Hydroxy-1-naphthyl)benzylidene]naphthalen-1(4H)-one; p-Naphtholbenzein
Health Hazard 1 Warning
Health Hazard 2 GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
TSCA TSCA

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.

Safety and Handling

Warning

GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.