ChemicalBook--->CAS DataBase List--->145-50-6

145-50-6

145-50-6 Structure

145-50-6 Structure
IdentificationMore
[Name]

p-Naphtholbenzein
[CAS]

145-50-6
[Synonyms]

1-NAPHTHOLBENZEIN
4-[(4-HYDROXY-1-NAPHTHALENYL)PHENYLMETHYLENE]-1(4H)-NAPHTHALENONE
ALPHA,ALPHA-BIS(4-HYDROXY-1-NAPHTHYL)BENZYL ALCOHOL
ALPHA-NAPHTHOLBENZEIN
A-NAPHTHOLBENZEIN
LABOTEST-BB LT00452038
P-NAPHTHOLBENZEIN
P-NAPHTHOLBENZEIN (ALPHA)
P-NAPHTHOLBENZEIN INDICATOR
P-NAPHTHOLBENZEIN TS
P-NAPTHOLBENZEIN
4-[(4-hydroxy-1-naphthalenyl)phenylmethylene]-1(4h)-naphthalenon
4,4’-(α-Hydroxybenzylidene)di-1-naphthol
4-(alpha-(4-hydroxy-1-naphthyl)benzylidene)naphthalen-1(4H)-one
ALPHA-NAPHTHOLBENZEIN, INDICATOR GRADE
P-NAPHTHOLBENZEIN(ALPHA-)(0.2% IN ACETIC ACID)[FOR NON-AQUEOUS TITRATION]
P-NAPHTHOLBENZEIN(ALPHA-)(10% IN CA. 95% ETHANOL) [FOR PH DETERMINATION]
1-Naphtholbenzein(PhIndicator)-(P-Naphtholbenzein)
1-Naphtholbenzein(PhIndicator)
1-NAPHTHOL BENZEIN ( ALPHA-NAPHTHOL BENZEIN) pH INDICATOR
[EINECS(EC#)]

230-116-9
[Molecular Formula]

C27H18O2
[MDL Number]

MFCD00078492
[Molecular Weight]

374.43
[MOL File]

145-50-6.mol
Chemical PropertiesBack Directory
[Appearance]

deep red to rust-coloured crystals
[Melting point ]

230-235 °C(lit.)
[Boiling point ]

463.44°C (rough estimate)
[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 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
[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)
Safety DataBack Directory
[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
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

p-Naphtholbenzein(145-50-6).msds
Hazard InformationBack Directory
[Chemical Properties]

deep red to rust-coloured crystals
[Uses]

alpha-Naphtholbenzein is a pH indicator (pH 0.0-0.8/ pH 8.2-10.0). Dyes and metabolites.
Spectrum DetailBack Directory
[Spectrum Detail]

p-Naphtholbenzein(145-50-6)FT-IR
p-Naphtholbenzein(145-50-6)IR
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

alpha-Naphtholbenzein, pure, 90%(145-50-6)
[Alfa Aesar]

alpha-Naphtholbenzein(145-50-6)
[Sigma Aldrich]

145-50-6(sigmaaldrich)
[TCI AMERICA]

p-Naphtholbenzein(145-50-6)
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