Summary
In concentrated sulfuric acid, triterpene compounds have one common characteristic absorption maximum in the UV region of the spectrum at 310 nm; this maximum does not change with the introduction of various substituents into the molecule.
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Additional information
Pyatigorsk Pharmaceutical Institute. Translated from Khimiya Prirodynykh Soedinenii, No. 2, pp. 147–150, March, 1971.
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Ponomarev, V.D., Oganesyan, É.T. & Semenchenko, V.F. Absorption spectra of pentacyclic triterpenoids in sulfuric acid. Chem Nat Compd 7, 139–141 (1971). https://doi.org/10.1007/BF00568683
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DOI: https://doi.org/10.1007/BF00568683