CARMINIC ACID (FOR MICROSCOPY)

CARMINIC ACID (FOR MICROSCOPY)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
C0060500005 For Microscopy 98% 1260-17-9 C22H20O13 492.40 3203.0090
60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

Red

Odour

Odorless

pH value

4.8 - 6.2

Solubility in water [% weight]

Appreciable (> 10%)

Specifications

Appearance:

 Dark brownish red powder

Loss on drying (at 105°C) :

 Max 7.0%

Assay (acidimetric; on anhydrous basis):

 Min 98%

Suitability (for microscopy):

 Passes test

Specific absorptivity 1%/1cm (at lmax):

 Min 130

Absorption maxima at pH 3.0:

 490 - 495 nm

Safety Information and Hazard Symbols

Safety Statement: 22-24/25
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

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