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Bromophenol blue, 5 g

ACS, for microscopy
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3,3',5,5'-Tetrabromophenol

sulphonphthaleine, 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
Well soluble in ethanol, used for vital staining of spermatozoa.

Guarantee analysis

€23.55/Pack Qty. 

excl. VAT. | 5 g per Pack Qty.

Art. No. T116.1

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Product details



Technical Information
Dyeing dead cells blue  
Colour conversion yellow - blue  
Handling area pH 3,0 - 4,6  
Use vitality test of spermatozoa  
Instructions for use, addition 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  
Bromophenol blue
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Order No. Pack Qty. Pack. Price Quantity
T116.1 5 g glass €23.55
T116.2 10 g glass €31.10
T116.3 25 g glass €48.95
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General information

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


Analysis certificates

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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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