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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=0.32 mM *
ANISALDEHYDE ID50=320 uM *
ANISALDEHYDE ID50=380-970 uM *
ANISE-ALCOHOL ID50=5,300 uM *
ANISIC-ACID ID50=680 uM *
ANISOLE ID50=7,100 uM *
ARBUTIN IC50=40 uM *
BENZALDEHYDE ID50=830 uM *
BENZALDEHYDE ID50=820 uM *
BENZALDEHYDE ID50=87 ug/ml *
BENZALDEHYDE ID50=0.82 mM *
BENZOIC-ACID ID50=710 uM *
BENZOIC-ACID ID50=640 uM *
CINNAMALDEHYDE ID50=129 ug/ml *
CINNAMALDEHYDE ID50=970 uM *
CINNAMIC-ACID ID50=700 uM *
CITRAL ID50=1.5 mM *
CITRAL ID50=1,500 uM *
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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
Corylus americana American Filbert; American Hazel 1 0
Corylus avellana English Filbert; European Filbert; European Hazel; Hazel; Cobnut 2 0
Crataegus cuneata Hawthorn 1 0
Crataegus laevigata Hawthorn; English Hawthorn; Whitethorn; Woodland Hawthorn 1 0
Crataegus monogyna Hawthorn; English Hawthorn 2 40
Crataegus rhipidophylla Hawthorn 1 0
Crocus sativus Saffron 2 0
Cucumis melo Cantaloupe; Melon; Muskmelon; Netted Melon; Persian Melon; Nutmeg Melon 2 0
Cucurbita pepo Pumpkin 2 0
Cuminum cyminum Cumin 2 867, 022
Curcuma longa Turmeric; Indian Saffron 4 880
Cuscuta reflexa Amarbel 1 0
Cyamopsis tetragonoloba Guar; Cluster-Bean; Siam-Bean 4 0
Cydonia oblonga Quince 1 0
Cymbopogon citratus West Indian Lemongrass; Lemongrass 2 102, 000
Cymbopogon flexuosus East Indian Lemongrass 1 8, 500
Cymbopogon winterianus Java Citronella; Mahapengiri 2 56
Cynara cardunculus Artichoke 1 0
Cytisus scoparius Scotch Broom 1 0
Daemonorops draco Dragon's Blood 2 0