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m-Cresol purple, 10 g

p.a.
Pack Qty.
Pack.
2',2''-Dimethylphenolsulfonphthalein, MCP, m-Cresolsulfonphthalein
Empirical formula C21H18O5S
Molar mass (M) 382,43 g/mol
WGK 1
CAS No. [2303-01-7]
EG-Nr. 218-960-6

Indicator pH 1,2-2,8 and pH 7,4-9,0
Dissolve 0.04 g in 100 ml ethanol (20 %) or 0.04 g in 1.05 ml NaOH 0.1 mol/l and make up to 100 ml with water

Type analysis

CHF88.90/Pack Qty. 

excl. VAT. | 10 g per Pack Qty.

Art. No. 5160.3

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from 24 Pack Qty. CHF80.01/Pack Qty.
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Product details



m-Cresol purple p.a.

Technical Information
Colour conversion red - yellow 
yellow - purple 
Handling area pH 1,2 - 2,8 
7,4 - 9,0 
m-Cresol purple
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Order No. Pack Qty. Pack. Price Quantity
5160.1 1 g glass CHF18.90
5160.2 5 g glass CHF51.10
5160.3 10 g glass CHF88.90
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Indicators and Dyes

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


Certificates of Analysis

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The following analysis certificates have been found:

Type analysis

Appearancegreen powder  
Assay≥90,0 %  
pH-transition range1,2 (red)-2,8 (yellow)  
Maximum absorption~579 nm  

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