Molekularrhein (Rhabarber-Rhein, antibakteriell und nicht wasserlöslich)

Rhein (molecule)

Rhein, also known as cassic acid, is a substance in the anthraquinone group found in rhubarb species like Rheum undulatum or Rheum palmatum or in Cassia reticulata. Rhein has been reevaluated as a new antibacterial agent against Staphylococcus aureus in 2008.

IUPAC name
4,5-dihydroxy-9,10-dioxoanthracene-2-carboxylic acid

Other names
Rhubarb Yellow
Monorhein
Cassic acid
Rheic acid
Chrysazin-3-carboxylic acid

Identifiers
CAS number: 478-43-3 =
PubChem: 10168
ChEMBL: CHEMBL418068

Properties
Molecular formula: C15H8O6
Molar mass: 284.22 g/mol
Appearance: Orange crystals
Melting point: 350–352 °C
Solubility in water: Insoluble in water

Hazards
EU classification: Xi
R-phrases: R36/R37/R38
S-phrases: S26-37/S39
Main hazards: Irritant

(aus der englischsprachigen Wikipedia)


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