2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Tyrosinase

Tyrosinase

Tyrosinase

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Tyrosinase is a copper-containing metalloprotein belonging to the type-3 copper protein family, together with haemocyanins and catechol oxidases. Tyrosinases are the catalysts in mammals responsible for the formation of melanin in skin and hair color, as well as browning in fruit and vegetables following cell damage.

Tyrosinases are found in various prokaryotes as well as in plants, fungi, arthropods, and mammals and are responsible for pigmentation, wound healing, radiation protection, and primary immune response. Tyrosinases perform two sequential enzymatic reactions: hydroxylation of monophenols and oxidation of diphenols to form quinones which polymerize spontaneously to melanin. In plants, sponges, and many invertebrates, tyrosinases are important for wound healing and primary immune responses; in arthropods, they play a role in sclerotization, and in bacteria, tyrosinases protect DNA from UV damage.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-149471
    hTYR/AbTYR-IN-1
    		Inhibitor 99.06%
    hTYR/AbTYR-IN-1 (Compound 7) is a hTYR/AbTYR dual inhibitor, with IC50s of 5.4 μM and 3.52 μM for hTYR and AbTYR respectively.
    hTYR/AbTYR-IN-1
  • HY-N1430R
    Oxyresveratrol (Standard)
    		Inhibitor
    Oxyresveratrol (Standard) is the analytical standard of Oxyresveratrol. This product is intended for research and analytical applications. Oxyresveratrol (trans-Oxyresveratrol) is a potent naturally occurring antioxidant and free radical scavenger (IC50 of 28.9 μM against DPPH free radicals). Oxyresveratrol is potent and noncompetitive tyrosinase inhibitor with an IC50 value of 1.2 μM for mushroom tyrosinase. Oxyresveratrol is effective against HSV-1, HSV-2 and varicella-zoster virus, and has neuroprotective effects.
    Oxyresveratrol (Standard)
  • HY-149698
    Tyrosinase-IN-17
    		Inhibitor
    Tyrosinase-IN-17 (Compound 5b) is a lipophilic, skin-permeable, and non-cytotoxic Tyrosinase inhibitor (pIC50=4.99). Tyrosinase-IN-17 can be used for research on melanin-related diseases, such as melanoma, melanogenesis, etc.
    Tyrosinase-IN-17
  • HY-161846
    Tyrosinase-IN-31
    		Inhibitor
    Tyrosinase-IN-31 (compound 2-06) is a central-targeting tyrosinase inhibitor (tyrosinase: monophenolase IC50=70.44 μM, diphenolase IC50=1.89 μM). Tyrosinase-IN-31 can inhibit the tyrosinase and melanogenesis. Tyrosinase-IN-31 can penetrate the BBB and enter the central nervous system (CNS). Tyrosinase-IN-31 shows neuroprotective effects and Parkinsonism behavior improving function.
    Tyrosinase-IN-31
  • HY-100962A
    AG 99
    		Inhibitor
    AG 99 (Tyrphostin 46), a tyrphostin derivative, is a tyrosine kinase inhibitor that increases sister chromatid exchange frequency in transformed CHO-K1 and primary CHE cells. AG 99 is promising for research of proliferative diseases.
    AG 99
  • HY-157124
    Tyrosinase-IN-19
    		Inhibitor
    Tyrosinase-IN-19 (compound 9) is a competitive tyrosinase inhibitor. Tyrosinase-IN-19 has strong antioxidant activities against ROS, ABTS+, and DPPH radicals. Tyrosinase-IN-19 suppresses tyrosinase expression in a dose-dependent manner.
    Tyrosinase-IN-19
  • HY-N3810
    ent-11α-Hydroxy-15-oxokaur-16-en-19-oic acid
    		Inhibitor
    ent-11α-Hydroxy-15-oxokaur-16-en-19-oic acid is an anti-melanin synthesis tyrosinase inhibitor, which can be isolated from Pteris fern. ent-11α-Hydroxy-15-oxokaur-16-en-19-oic acid regulates the melanogenesis transcription factor microphthalmia-associated transcription factor (MITF). The 11α-OH, 15-oxo and 16-en moieties of ent-11α-Hydroxy-15-oxokaur-16-en-19-oic acid are key fragments that inhibit melanin synthesis. The 19-COOH moiety has been implicated in the inhibition of cytotoxicity associated with 11α-OH KA and related compounds.
    ent-11α-Hydroxy-15-oxokaur-16-en-19-oic acid
  • HY-161971
    Tyrosinase-IN-35
    		Inhibitor
    Tyrosinase-IN-35 (compound 6g) is a human tyrosinase inhibitor (IC50: 2.09 μM), which is more potent than Kojic Acid (HY-W050154) (IC50: 16.38 μM). Tyrosinase-IN-35 can reduce the melanin content of melanoma B16F10 cells in vitro at doses of 4 μM and 8 μM.
    Tyrosinase-IN-35
  • HY-N10286
    Chetoseminudin B
    		Inhibitor
    Chetoseminudin B possesses mushroom tyrosinase inhibitory activity with IC50 of 31.7 μM.
    Chetoseminudin B
  • HY-126618
    Aspochalasin I
    		Inhibitor
    Aspochalasin I exhibits cytotoxicity against cancer cells NCIH460, MCF-7 and SF-268, with IC50s of 22.1, 33.4 and 19.9 μM. Aspochalasin I inhibits melanogenesis (IC50 of 22.4 μM) through inhibition of tyrosinase, and can thus be used as whitening agent.
    Aspochalasin I
  • HY-P5252
    Diaminopropionoyl tripeptide-33
    		Inhibitor
    Diaminopropionoyl tripeptide-33isa bioactive peptide with protects skin cells from UVA-induced DNA damages and has been reported used as a cosmetic ingredient.
    Diaminopropionoyl tripeptide-33
  • HY-120036
    Tyrphostin AG1112
    		Inhibitor
    Tyrphostin AG1112 is a potent inhibitors of CK II. Tyrphostin AG1112 inhibits p210bcr-abl tyrosine kinase, with IC50 values of 2, 15, 20 μM in p210bcr-abl, EGFR and PDGFR cells, respectively.
    Tyrphostin AG1112
  • HY-W013636AR
    2-Ketoglutaric acid Sodium (Standard)
    		Inhibitor
    2-Ketoglutaric acid (Sodium) (Standard) is the analytical standard of 2-Ketoglutaric acid Sodium (HY-W013636A). This product is intended for research and analytical applications. 2-Ketoglutaric acid (Alpha-Ketoglutaric acid) Sodium (Standard) is an intermediate in the production of ATP or GTP in the Krebs cycle. 2-Ketoglutaric acid Sodium also acts as the major carbon skeleton for nitrogen-assimilatory reactions. 2-Ketoglutaric acid Sodium is a reversible inhibitor of tyrosinase (IC50=15 mM).
    2-Ketoglutaric acid Sodium (Standard)
  • HY-147709
    Tyrosinase-IN-6
    Compound 4B proved to be the most effective tyrosinase inhibitor (ic50= 3.80 μ M) It also showed good antioxidant activity.
    Tyrosinase-IN-6
  • HY-155240
    Tyrosinase-IN-13
    		Inhibitor
    Tyrosinase-IN-13 (compound 3c), a derivative of Flurbiprofen (HY-10582), is a potent, non-competitive tyrosinase inhibitor (IC50=68 μM; Ki=36.3 μM). Tyrosinase-IN-13 is cytotoxic against hepatocellular carcinoma (HepG2), colorectal cancer (HT-29), and melanoma (B16F10).
    Tyrosinase-IN-13
  • HY-N3773
    Dodoviscin A
    		Inhibitor
    Dodoviscin A is a pigmentation-altering agent, which can be isolated from the aerial parts of Dodonaea viscosa. Dodoviscin A inhibits melanin production in B16-F10 melanoma cells. Dodoviscin A suppresses mushroom tyrosinase activity, and tyrosinase activity induced by 3-isobutyl-1-methylxanthine. Dodoviscin A also inhibits the phorphosylation of cAMP response element binding protein, induced by 3-isobutyl-1-methylxanthine and forskolin.
    Dodoviscin A
  • HY-116750
    6-Hydroxykaempferol
    		Inhibitor
    6-Hydroxykaempferol, a flavonoid, is a competitive tyrosinase inhibitor with an IC50 value of 124 μM. 6-Hydroxykaempferol has a Ki value of 148 μM relative to L-DOPA as a substrate and effectively inhibits the activity of the enzyme by binding to the active site of the enzyme.
    6-Hydroxykaempferol
  • HY-162894
    Tyrosinase-IN-37
    		Inhibitor
    Tyrosinase-IN-37 (Compound 3c) is an effective Tyrosinase inhibitor with an IC50 of 1.02 μM, exhibiting 14 times the inhibitory effect of kojic acid (Kojic acid, HY-W050154), which has an IC50 of 14.74 μM. Tyrosinase-IN-37 can effectively prevent the browning of Rosa roxburghii. Additionally, Tyrosinase-IN-37 can also inhibit browning that is not caused by Tyrosinase.
    Tyrosinase-IN-37
  • HY-131327
    Azo-resveratrol
    		Inhibitor
    Azo-resveratrol, an Azo compound, inhibits Mushroom tyrosinase (IC50=36.28 μM).
    Azo-resveratrol
  • HY-169328
    Tyrosinase-IN-39
    		Inhibitor
    Tyrosinase-IN-39 (compound 5r) is a competitive tyrosinase inhibitor with the IC50 of 6.4 μM and can be used for study of skin diseases.
    Tyrosinase-IN-39
Cat. No. Product Name / Synonyms Application Reactivity