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Bromophenol blue, 5 g

ACS, for microscopy
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3,3',5,5'-Tetrabromophenolsulphonphthaleine, BPB
Empirical formula C19H10Br4O5S
Molar mass (M) 669,99 g/mol
Melting point (mp) 273 °C
WGK 1
CAS No. [115-39-9]
EG-Nr. 204-086-2

Indicator pH 3.0-4.6
Dissolve 0.1 g in 100 ml ethanol (20 %) or 0.04 g in 0.74 ml NaOH 0.1 mol/l and make up to 100 ml with water

Guarantee analysis

CHF30.70/Pack Qty. 

excl. VAT. | 5 g per Pack Qty.

Art. No. T116.1

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Bromophenol blue ACS, for microscopy

Technical Information
Dyeing dead cells blue 
Colour conversion yellow - blue 
Handling area pH 3,0 - 4,6 
Use vitality test of spermatozoa 
Bromophenol blue
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Order No. Pack Qty. Pack. Price Quantity
T116.1 5 g glass CHF30.70
T116.2 10 g glass CHF40.50
T116.3 25 g glass CHF63.70
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General information

Indicators and Dyes

Indicators and DyesCarl ROTH offers many indicators and dyes of high purity, which can be used in special applications.


Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Appearancepink powder  
Appearance of solutioncomplies  
pH-transition range3,0 (yellow)- 4,6 (blue)  
Loss on drying (110 °C)≤1,0 %  

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