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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=380-970 uM *
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=820 uM *
BENZALDEHYDE ID50=87 ug/ml *
BENZALDEHYDE ID50=830 uM *
BENZALDEHYDE ID50=0.82 mM *
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=1.5 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
Sorbus aucubaria Rowan Berry 4 0
Spartium junceum Genet; Spanish Broom; Weaver's Broom 1 0
Spinacia oleracea Spinach 4 154
Stachys officinalis Betony; Wood Betony; Bishop's-Wort; Purple Betony 1 0
Stachytarpheta cayennensis Verbena 1 0
Stevia rebaudiana Ca-A-E; Sweet Leaf of Paraguay; Stevia 1 0
Styrax benzoin Benzoin; Onycha; Styrax 3 0
Styrax tonkinensis Siam Benzoin 2 400, 002
Syringa vulgaris Lilac 2 0
Syzygium aromaticum Clove; Clovetree 5 66
Tabebuia impetiginosa Pau d'arco; Taheebo 3 0
Tagetes erecta Marigold; Aztec Marigold 1 0
Tagetes filifolia Pampa Anise; Irish Lace 2 0
Tagetes lucida Sweet-Mace; Sweet-Scent Marigold; Sweet-Scent Mexican Marigold; Anise Marigold 1 0
Tagetes minuta Wild Marigold; Aztec Marigold; Dwarf Marigold; Mexican Marigold; Muster John Henry; Stinking-Roger 2 0
Tagetes patula French Marigold 3 0
Tamarindus indica Tamarind; Kilytree; Indian Tamarind 1 0
Tanacetum parthenium Feverfew 2 0
Tanacetum vulgare Tansy 1 0
Taraxacum officinale Dandelion 3 0