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p-Naphtholbenzein

p-Naphtholbenzein Structure
p-Naphtholbenzein
  • CAS No.145-50-6
  • Chemical Name:p-Naphtholbenzein
  • CBNumber:CB4450645
  • Molecular Formula:C27H18O2
  • Formula Weight:374.43
  • MOL File:145-50-6.mol
p-Naphtholbenzein Property
  • 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
  • pka :8.95(at 25℃)
  • form  :Liquid
  • color  :Pale Red-Brown
  • PH Range :Green (0.0) to yellow (0.8);Yellow (8.2) to green-blue (11.0)
  • Odor :Odorless
  • Water Solubility  :insoluble
  • λmax :210nm
  • BRN  :3471575
  • Stability: :Stable. Combustible. Incompatible with strong oxidizing agents.
  • InChIKey :VDDWRTZCUJCDJM-SOYKGTTHSA-N
  • CAS DataBase Reference :145-50-6(CAS DataBase Reference)
  • EPA Substance Registry System :1(4H)-Naphthalenone, 4-[(4-hydroxy-1-naphthalenyl)phenylmethylene]- (145-50-6)
Safety
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H315-H319-H335
  • Precautionary statements P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
p-Naphtholbenzein Price More Price(20)
  • Brand: Sigma-Aldrich
  • Product number: 291099
  • Product name : α-Naphtholbenzein
  • Purity: indicator grade
  • Packaging: 5g
  • Price: $46.5
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 1.06202
  • Product name : 1-Naphtholbenzein
  • Purity: indicator Reag. Ph Eur
  • Packaging: 5 g
  • Price: $76.13
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 291099
  • Product name : α-Naphtholbenzein
  • Purity: indicator grade
  • Packaging: 25g
  • Price: $167
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: N0028
  • Product name : p-Naphtholbenzein
  • Purity: 
  • Packaging: 25g
  • Price: $249
  • Updated: 2021/12/16
  • Buy: Buy
  • Brand: Alfa Aesar
  • Product number: A16125
  • Product name : alpha-Naphtholbenzein
  • Purity: 
  • Packaging: 5g
  • Price: $34.5
  • Updated: 2021/12/16
  • Buy: Buy

p-Naphtholbenzein Chemical Properties,Usage,Production

  • 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.
p-Naphtholbenzein Preparation Products And Raw materials
Raw materials
Preparation Products
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  • p-Naphtholbenzein USP/EP/BP
  • α-Naphtholbenzein (Technical Grade)
  • α-Naphtholquinone phenylmethane 1-Naphtholbenzein, indicator Reag.
  • 145-50-6
  • C27H18O2
  • pH Indicators
  • Indicator (pH)
  • Analytical Chromatography Product Catalog
  • Analytical Reagents
  • IR/UV/ VIS
  • Spectroscopy Reagents
  • Benzein
  • Analytical Chemistry