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

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
ACETALDEHYDE ID50=43 ug/ml *
ANACARDIC-ACID *
ANISALDEHYDE ID50=380-970 uM *
ANISALDEHYDE ID50=0.32 mM *
ANISALDEHYDE ID50=320 uM *
ANISE-ALCOHOL ID50=5,300 uM *
ANISIC-ACID ID50=680 uM *
ANISOLE ID50=7,100 uM *
ARBUTIN IC50=40 uM *
BENZALDEHYDE ID50=0.82 mM *
BENZALDEHYDE ID50=830 uM *
BENZALDEHYDE ID50=820 uM *
BENZALDEHYDE ID50=87 ug/ml *
BENZOIC-ACID ID50=710 uM *
BENZOIC-ACID ID50=640 uM *
CINNAMALDEHYDE ID50=970 uM *
CINNAMALDEHYDE ID50=129 ug/ml *
CINNAMIC-ACID ID50=700 uM *
CITRAL ID50=1,500 uM *
CITRAL ID50=1.5 mM *
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List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Taxus baccata Common Yew 4 2, 035
Telosma cordata Merrill flowers 1 1, 026
Terminalia catappa Indian Almond; Tropical Almond; Malabar Almond 2 0
Terminalia chebula Ink Nut; Myrobalan; Black Myrobalan; Chebulic Myrobalan 2 0
Terminalia ivorensis Idigbo; Emire; Blackbark; Black Afara; Brimstonewood; Satinwood; Shinglewood 1 0
Teucrium botrys Field Germander 1 0
Teucrium montanum Mountain Germander 1 0
Teucrium polium Golden Germander 1 0
Teucrium scordium Water Germander 1 0
Theobroma cacao Cacao 4 0
Thespesia populnea Indian tulip tree 2 700
Thevetia peruviana Peruvian Yellow Oleander; Luckynut; Yellow Oleander; Oleandre Jaune (Fr.); Thevetie (Ger.); Loandro-Amarelo (Port.); Adelfa Amarilla (Sp.); Cabalonga (Sp.); Chirca (Sp.) 2 0
Thymus capitatus 'Sicilian' Thyme; Spanish Origanum; Spanish Thyme 1 0
Thymus longicaulis Kekik; Tas Kekik 1 0
Thymus serpyllum Creeping Thyme 1 0
Thymus vulgaris Common Thyme; Garden Thyme; Thyme 4 1, 260
Tilia sp. Basswood; Lime; Linden 2 0
Tribulus terrestris Puncture-vine 2 0
Tridax procumbens Coatbuttons; Mexican daisy 1 0
Trifolium pratense Red Clover; Purple Clover; Peavine Clover; Cowgrass 4 192