Bromophenol blue (BPB)

pH3.0(yellow)-pH4.6(lavender), yellowish brown powder

  • Product Code: 51258
  Alias:    Bromophenol blue; Tetrabromophenolsulfonphenolphthalein, bromophenol blue
  CAS:    115-39-9
Molecular Weight: 669.96 g./mol Molecular Formula: C₁₉H₁₀Br₄O₅S
EC Number: 200-679-5 MDL Number: MFCD00005875
Melting Point: 273 °C Boiling Point:
Density: Storage Condition: room temperature
Product Description: Bromophenol blue (BPB) is widely used as a pH indicator in various laboratory applications. It is particularly effective in the pH range of 3.0 to 4.6, where it transitions from yellow (acidic) to blue (basic). This property makes it valuable in titrations to determine the endpoint of acid-base reactions. In microbiology, BPB is often incorporated into agar media to monitor pH changes during bacterial growth. Additionally, it is used in electrophoresis as a tracking dye to monitor the progress of nucleic acid or protein migration through gels. Its vivid color change also aids in teaching and demonstrating pH concepts in educational settings.
Product Specification:
Test Specification
APPEARANCE Yellow to tan powder
SOLUBILITY IN ETHANOL PASS
VISNAL TRANSITION INTERVAL pH3.0yellow-pH4.6lavender
Sizes / Availability / Pricing:
Size (g) Availability Price Quantity
10.000 10-20 days ฿540.00
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-
50.000 10-20 days ฿1,760.00
+
-
250.000 10-20 days ฿7,200.00
+
-
1000.000 10-20 days ฿28,600.00
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-
Bromophenol blue (BPB)
Bromophenol blue (BPB) is widely used as a pH indicator in various laboratory applications. It is particularly effective in the pH range of 3.0 to 4.6, where it transitions from yellow (acidic) to blue (basic). This property makes it valuable in titrations to determine the endpoint of acid-base reactions. In microbiology, BPB is often incorporated into agar media to monitor pH changes during bacterial growth. Additionally, it is used in electrophoresis as a tracking dye to monitor the progress of nucleic acid or protein migration through gels. Its vivid color change also aids in teaching and demonstrating pH concepts in educational settings.
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