Orange needle crystals. Anthragallol is one of the natural colorants extracted from madder and other Rubiaceae family plants. It dissolves in acids to give a brownish-red color.
Synonyms and Related Terms
1,2,3-trihydroxyanthraquinone; CI 58200; antragalol (Esp.); antragallolo (It.)
Physical and Chemical Properties
- Melting Point = 312-313 C
Resources and Citations
- Artists' Pigments: A Handbook of their History and Characteristics, Elisabeth West FitzHugh, Oxford University Press, Oxford, Vol. 3, 1997 Comment: H.Schweppe, J.Winter, "Madder and Alizarin"