Millipore Sigma Vibrant Logo

106202 1-Naphtholbenzein

View Products on
View Pricing & Availability


Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar MassGrade Value
145-50-6205-656-3C₂₇H₁₈O₂374.43 g/molReag. Ph Eur

Pricing & Availability

Catalog Number AvailabilityPackaging Qty/Pack Price Quantity
Retrieving availability...
Fulfilment and delivery delayed
Fulfilment and delivery delayed
Limited Quantities Available
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      Glass bottle 5 g
      Retrieving price...
      Price could not be retrieved
      Minimum Quantity is a multiple of
      Maximum Quantity is
      Upon Order Completion More Information
      You Saved ()
      Request Pricing
      Catalogue Number106202
      Product Information
      CAS number145-50-6
      EC number205-656-3
      GradeReag. Ph Eur
      Hill FormulaC₂₇H₁₈O₂
      Molar Mass374.43 g/mol
      HS Code2914 50 00
      Structure formula ImageStructure formula Image
      Quality LevelMQ200
      Biological Information
      Physicochemical Information
      Melting Point243 - 245 °C
      Bulk density120 - 300 kg/m3
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Storage class10 - 13 Other liquids and solids
      WGKWGK 3 highly hazardous to water
      Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
      Safety Information
      Product Usage Statements
      Storage and Shipping Information
      StorageStore at +2°C to +30°C.
      Packaging Information
      Transport Information
      Supplemental Information
      Identity (IR-spectrum)passes test
      Identity (UV/VIS-Spectrum)passes test
      Absorption maximum λmax. (perchloric acid (0,1 mol/l) in acetic acid)622 - 626 nm
      Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; perchloric acid (0,1 mol/l) in acetic acid; calculated on dried substance)640 - 950
      Transition rangepH 8,0 - pH 9,6; apricot - turquoiseblue
      Loss on Drying (105°C)≤ 7 %
      Suitability as indicator (for non-aqueous titration)passes test

      Related Products & Applications

      Accessories (Secondary)

      Catalog Number Description  
      109065 Perchloric acid Show Pricing & Availability


      Analytics and Sample Preparation > Reagents for Pharmacopoeia Analysis > Indicators for Pharmacopoeia Analysis
      Reagents, Chemicals and Labware > Inorganic Reagents > Safety Products and General Applications > Indicators > Acid Alkali Indicators or pH Indicators