The cultivation of madder root almost ceased after a synthetic method for making alizarin was discovered in 1868.
Manufacturer / product code: Kremer / 372051
Chemical description: made from the roots of rubia tinctorum. 1,2-dihydroxyantraquinone. Kremer PDF
Color: red
Color Index: NR9
More info: Pigments Through The Ages Colourlex
Raman spectroscopy 1064 nm
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NIR Reflectance spectroscopy
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