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Bromophenol Blue

Bromophenol Blue

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Details :

  • Article - 1206-90

  • Molecular Formula - C19H10Br4O5S

  • Molecular Weight - 669.96

  • H.S. Code - 3204.1300

  • CAS No. - 115-39-9

  • UN No. - NA

  • IMCO Class - NA

  • Packing Group - NA


Colour marker to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis; as a dye at neutral pH, the dye absorbs red light most strongly and transmits blue light. Solutions of the dye therefore are blue. At low pH, the dye absorbs ultraviolet and blue light most strongly and appears yellow in solution. In solution at pH 3.6 (in the middle of the transition range of this pH indicator) obtained by dissolution in water without any pH adjustment, bromophenol blue has a characteristic green red color. Bromphenol blue is the substance with the highest known value of Kreft's dichromaticity index; Acid-Base indicator between pH 3.0 and 4.6. It changes from yellow at pH 3.0 to purple at pH 4.6; this reaction is reversible. Bromophenol blue is structurally related to phenolphthalein



  • Appearance - Yellow to brown crystalline powder

  • Physical State - Solid, Fine Powder

  • Loss On Drying - Max 1.0%

  • pH 3.0 - 4.6 - Greenish Yellow To Blue Violet

  • Transition Range - PH 3.0: Greenish Yellow; PH 4.6: Bluish Violet

  • Packing - 25kg


DISCLAIMER OF LIABILITY The information in this SDS was obtained from sources which we believe are reliable. However, the information is provided without any warranty, express or implied, regarding its correctness. The conditions or methods of handling, storage, use or disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in anyway connected with the handling, storage, use or disposal of the product. Buyer should ascertain & verify the data and analyse on its own before using the product. This data / information is the indication and not final. Products covered by valid patents in a country are not offered & / or supplied there. The customer is responsible for verification of the patent position. Product are not offered in the countries where they are covered under Patent. However, ultimate responsibility remains of the customer.

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