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Alizarin red S (C.I. 58005), 100 g

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Alizarin sulphonic acid sodium salt, Alizarin carmine
Empirical formula C14H7NaO7S
Molar mass (M) 342,26 g/mol
CAS No. 130-22-3
EG-Nr. 204-981-8

Indicator pH 4.3-6.3 and pH 9.4-12.0
Dissolve 0.1-1 g in 100 ml ethanol (96 %)

Dye for vital staining, e.g. staining of mineralized sites in bone tissue.
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€123.10/Pack Qty. 

excl. VAT. | 100 g per Pack Qty.

Art. No. 0348.3

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Product details

Alizarin red S (C.I. 58005) pure

Dye for vital staining, e.g. staining of mineralized sites in bone tissue.

Technical Information
Dyeing red fluorescence 
Determination of Al 

Absorption maximum 530-560 nm 
Emissions maximum 580 nm 
Colour conversion yellow - red violet 
brown orange - violet 
Transition range pH 4,3 - 6,3 
9,4 - 12,0 
Use detection of mineralized sites in bone tissue 
Alizarin red S (C.I. 58005)
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Art. No. Pack Qty. Pack. Price Quantity
0348.1 10 g glass


0348.2 25 g glass


0348.3 100 g glass


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Selected quantity:   0
  1. Subtotal:  0.00

Downloads / MSDS

General information

Indicators and Dyes

Carl 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:

Type analysis

Absorption max. (in H2O)550-560 nm
Loss on drying (110 °C)≤10.0 %
pH-transition range4.3 (yellow)-6.3 (red violet)
Transition range9.4 (brown orange)-12.0 (violet)
Suitability as indicatorcomplies