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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture

Plant Tabebuia impetiginosa (Bignoniaceae)

Common Names
Pau d'arco, Taheebo
How this plant is used
Medicinal

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List of plant chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Activity Count Plant Part Low Parts Per Million High Parts Per Million Standard Deviation Reference
(+)-2-(1'-HYDROXY-ETHYL)-NAPHTHO-(2,3,B)-FURAN-4,9-DIONE 0 Stem Bark *
(-)-5-HYDROXY-2-(1'-HYDROXY-ETHYL)-NAPHTHO-(2,3,B)-FURAN-4,9-DIONE 0 Stem Bark 10.0 *
(-)-6-HYDROXY-MELLEIN 0 Stem Bark *
1-(1-HYDROXY-ETHYL)-FURONAPHTHOQUINONE 0 Bark *
1-HYDROXYANTHRAQUINONE 3 Heart Wood 16.0 *
1-METHOXY-ANTHRAQUINONE 0 Heart Wood 3.6 *
2,3-DIMETHYL-1,4-NAPHTHOQUINONE 0 Heart Wood 32.0 *
2-(1-HYDROXY-ETHYL)-NAPHTHO-(2-3-B)-FURAN-4-9-DIONE 0 Bark *
2-ACETOXY-METHYL-ANTHRAQUINONE 0 Heart Wood 40.0 *
2-ACETYL-5-HYDROXY-NAPHTHO-(2-3-B)-FURAN-4-9-DIONE 0 Stem Bark 3.7 *
2-ACETYL-5-HYDROXY-NAPHTHO-(2-3-B)-FURAN-4-9-DIONE 0 Tissue Culture 50.0 *
2-ACETYL-8-HYDROXY-NAPHTHO-(2-3-B)-FURAN-4-9-DIONE 0 Stem Bark 4.3 *
2-ACETYL-NAPHTHO-(2-3-B)-FURAN-4-9-DIONE 0 Bark *
2-ACETYL-NAPHTHO-(2-3-B)-FURAN-4-9-DIONE 0 Stem Bark *
2-DEHYDRO-ALPHA-LAPACHONE 0 Bark 350.0 *
2-ETHYL-NAPHTHO(2,3-B)-FURAN-4-9-DIONE 0 Bark *
2-HYDROXY-3-METHYL-ANTHRAQUINONE 0 Heart Wood 62.0 *
2-HYDROXY-METHYL-ANTHRAQUINONE 2 Heart Wood 24.0 *
3,4,5-TRIMETHOXYBENZOIC-ACID 0 Stem Bark *
4-HYDROXY-BENZOIC-ACID 0 Heart Wood 196.0 *
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