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145-50-6

Name p-Naphtholbenzein
CAS 145-50-6
EINECS(EC#) 230-116-9
Molecular Formula C27H18O2
MDL Number MFCD00078492
Molecular Weight 374.43
MOL File 145-50-6.mol
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Chemical Properties

Appearance deep red to rust-coloured crystals
Melting point  230-235 °C(lit.)
Boiling point  463.44°C (rough estimate)
bulk density 120-300kg/m3
density  1.0946 (rough estimate)
vapor density  12.9 (vs air)
refractive index  1.4875 (estimate)
storage temp.  Store at +5°C to +30°C.
solubility  Solubility Insoluble in water; soluble in ethanol, methanol
form  Liquid
pka 8.95(at 25℃)
color  Pale Red-Brown
Odor Odorless
PH 0.0, green
0.8, yellow
10.0, blue-green
8.2, yellow
PH Range Green (0.0) to yellow (0.8);Yellow (8.2) to green-blue (11.0)
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
Water Solubility  insoluble
ε(extinction coefficient) ≥50000 at 207-213nm in methanol at 0.01g/L
λmax 210nm
BRN  3471575
InChIKey VDDWRTZCUJCDJM-SOYKGTTHSA-N
CAS DataBase Reference 145-50-6(CAS DataBase Reference)
EPA Substance Registry System 145-50-6(EPA Substance)
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Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  3
F  10-21
TSCA  Yes
HS Code  29145000

Hazard Information

Material Safety Data Sheet(MSDS)

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