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Bromocresol purple, 5 g

p.a., ACS
Pack Qty.
Empirical formula C21H16Br2O5S
Molar mass (M) 540,24 g/mol
Melting point (mp) 242 °C
CAS No. [115-40-2]
EG-Nr. 204-087-8

Indicator pH 5.2-6.8

Guarantee analysis

€20.50/Pack Qty. 

excl. VAT. | 5 g per Pack Qty.

Art. No. 0317.1

Available from stock Karlsruhe
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from 6 Pack Qty. €19.48/Pack Qty.
from 24 Pack Qty. €18.45/Pack Qty.
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Product details

Technical Information
Colour conversion yellow - purple  
Handling area pH 5,2 - 6,8  
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 fill up with water to 100 ml  
Bromocresol purple
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Order No. Pack Qty. Pack. Price Quantity
0317.1 5 g glass €20.50
0317.2 25 g glass €64.50
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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

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

Dye content≥89,0 %  
Appearance of solutioncomplies  
Loss on drying (110 °C)≤1 %  
Melting point241-245 °C  
pH-transition range5.2 (yellow) - 6.8 (purple)  

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