Rosolic acid is an organic compound, forming yellowish or deep-red crystals with greenish metallic luster. Practically insoluble in water and freely soluble in alcohol. Soluble in strong acids to form a yellow solution or in aqueous alkalis to form carmine red solutions.
Due to this behavior, it is suitable to be used as a pH indicator with pH transition range 5.0 - 6.8.
UV Absorption: λ max 482nm
Synonyms: Paraosolic Acid, PSP, phenolsulfonphthalein, Aurin, Corallin, 4--2,5-cyclohexadienone
- Molecular Weight:
- Merck 13, 885, Beilstein 8, IV, 2646