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-101445A
    (R)-Trolox
    		Inhibitor 99.91%
    (R)-Trolox is a vitamin E analogue and a competitive tyrosinase inhibitor with a Ki value of 0.83 mM and a ID50 value of 1.88 mM. The (R)-Trolox has stronger tyrosinase affinity than the (S) enantiomer (Ki value of 0.61 mM).
    (R)-Trolox
  • HY-119152
    CMX-2043
    		Activator 99.42%
    CMX-2043 is a novel analogue of α-Lipoic Acid (HY-N0492). CMX-2043 is effective in antioxidant effect, activation of insulin receptor kinase, soluble tyrosine kinase, and Akt phosphorylation. CMX-2043 shows protection against ischemia-reperfusion injury (IRI) in rat model.
    CMX-2043
  • HY-P1827
    mTRP-2 (180-188)
    		99.61%
    mTRP-2 (180-188) is a murine tyrosinase-related protein 2 (TRP-2) -derived peptide, corresponding to residues 180-188. TRP-2 (180-188) is identified as the major reactive epitope within TRP-2 recognized by anti-B16 CTLs.
    mTRP-2 (180-188)
  • HY-N2278
    Kushenol A
    		Inhibitor 99.98%
    Kushenol A (Leachianone E) is isolated from the root of Sophora flavescent. Kushenol A is a non-competitive tyrosinase inhibitor to block the conversion of L-tyrosine to L-DOPA, shows IC50 and Kivalues of 1.1 μM and 0.4 μM, respectively. Kushenol A is a flavonoid antioxidant, has inhibitory effects on alpha-glucosidase (IC50: 45 μM; Ki: 6.8 μM) and β-amylase. Kushenol A is confirmed as potential inhibitors of enzymes targeted by cosmetics for skin whitening and aging.
    Kushenol A
  • HY-Y0444
    D-Tyrosine
    		Inhibitor ≥98.0%
    D-Tyrosine is the D-isomer of tyrosine. D-Tyrosine negatively regulates melanin synthesis by inhibiting tyrosinase activity. D-Tyrosine inhibits biofilm formation and trigger the self-dispersal of biofilms without suppressing bacterial growth.
    D-Tyrosine
  • HY-W013636R
    2-Ketoglutaric acid (Standard)
    		Inhibitor 99.52%
    2-Ketoglutaric acid (Standard) (Alpha-Ketoglutaric acid (Standard)) is the analytical standard of 2-Ketoglutaric acid (HY-W013636). This product is intended for research and analytical applications. 2-Ketoglutaric acid (Alpha-Ketoglutaric acid) is an intermediate in the production of ATP or GTP in the Krebs cycle. 2-Ketoglutaric acid also acts as the major carbon skeleton for nitrogen-assimilatory reactions. 2-Ketoglutaric acid is a reversible inhibitor of tyrosinase (IC50=15 mM).
    2-Ketoglutaric acid (Standard)
  • HY-N3516
    Oxyresveratrol 2-O-β-D-glucopyranoside
    		Inhibitor 99.08%
    Oxyresveratrol 2-O-β-D-glucopyranoside is a phenolic compound isolated from Morus nigra root and is an effective tyrosinase inhibitor with an IC50 of 29.75 μM.
    Oxyresveratrol 2-O-β-D-glucopyranoside
  • HY-N2134
    Mirificin
    		Inhibitor 99.66%
    Mirificin (Puerarin apioside) is a isoflavone in Puerariae Lobatae Radix. Mirificin inhibits tyrosinase (TYR) with an IC50 of 12.66 μM.
    Mirificin
  • HY-N0646
    Silydianin
    		Inhibitor 99.79%
    Silydianin is a flavonolignan. Silydianin can be obtained from Silybum marianum. Silydianin inhibits PTP1B with an IC50 of 17.38 μM. Silydianin inhibits both monophenolase and diphenolase of tyrosinase significantly, with IC50s of 2.6 μM and 16.5 μM, respectively. Silydianin induces Apoptosis and reduces cytokines (IL-4 and IL-5). Silymarin has antioxidant, cytoprotective and immunomodulatory effects. Silydianin has antitumor activity against prostate cancer. Silymarin can be used in allergic asthma research.
    Silydianin
  • HY-B1428
    2-Ethoxybenzamide
    		Activator 99.82%
    2-Ethoxybenzamide (Ethenzamide) is a nonsteroidal anti-inflammatory agent that shows analgesic and antipyretic effects. 2-Ethoxybenzamide induces melanin synthesis via cAMP response element-binding protein (CREB) phosphorylation. 2-Ethoxybenzamide can be used in the research of hypopigmentation and inflammation-related diseases.
    2-Ethoxybenzamide
  • HY-W013673
    2,3-Diaminopropionic acid hydrochloride
    		Inhibitor ≥98.0%
    2,3-Diaminopropionic acid hydrochloride is the precursor of antibiotics and the siderophore staphyloferrin B. 2,3-Diaminopropionic acid hydrochloride is the inhibitor for polyphenoloxidase (PPO).
    2,3-Diaminopropionic acid hydrochloride
  • HY-N3518
    Mulberroside F
    		Inhibitor 99.37%
    Mulberroside F is one of the main bioactive constituents in mulberry (Morus alba L.). Mulberroside F shows inhibitory effects on tyrosinase activity and on the melanin formation. Mulberroside F also exhibits superoxide scavenging activity that is involved in the protection against auto-oxidation.
    Mulberroside F
  • HY-15811
    XMD8-87
    		Inhibitor 99.57%
    XMD8-87 is a potent TNK2 inhibitor with IC50 values of 38 and 113 nM for the D163E and R806Q mutations, respectively.
    XMD8-87
  • HY-145587
    Paltimatrectinib
    		Inhibitor 99.96%
    Paltimatrectinib (compound I-147) is a potent tyrosine kinase inhibitor with an IC50 of <10 nM for tropomyosin kinases A (TrkA). Paltimatrectinib has the potential for cancer and inflammatory diseases.
    Paltimatrectinib
  • HY-N2443
    Tribuloside
    		Activator 99.64%
    Tribuloside is a flavonoid and PDE4 inhibitor (IC50: 6 μM). Tribuloside exhibits antibacterial and antioxidant activities, capable of scavenging DPPH free radicals. Tribuloside also promotes melanogenesis. Tribuloside can be used in the research of hypopigmentary diseases, sun protection, and inflammatory diseases such as acute lung injury.
    Tribuloside
  • HY-N3239
    Mulberrofuran G
    		Inhibitor 99.84%
    Mulberrofuran G is a NOX inhibitor (IC50: 6.9 μM) and tyrosinase inhibitor. Mulberrofuran G exhibits anti-inflammatory, antioxidant, antiviral, antitumor, and neuroprotective effects. Mulberrofuran G can be used in the research of tumors, nervous system diseases, and other conditions.
    Mulberrofuran G
  • HY-N2460
    Aloesin
    		Inhibitor 99.62%
    Aloesin (Aloeresin) is a tyrosinase inhibitor, and shows anti-inflammatory activity, ultraviolet protection, and antibacterium effects. Aloesin can induce apoptosis and be used in ovarian cancer research.
    Aloesin
  • HY-W013636A
    2-Ketoglutaric acid Sodium
    		Inhibitor ≥98.0%
    2-Ketoglutaric acid Sodium (Alpha-Ketoglutaric acid Sodium) 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
  • HY-N4005
    Isoastilbin
    		Inhibitor 99.80%
    Isoastilbin is a dihydroflavonol glycoside compound in Rhizoma Smilacis glabrae and Astragalus membranaceus. Isoastilbin inhibits glucosyltransferase (GTase) with an IC50 value of 54.3 μg/mL, and also inhibits tyrosinase activity. Isoastilbin shows neuroprotective, antioxidation, antimicrobial and anti-apoptotic properties and has the potential for Alzheimer’s disease research.
    Isoastilbin
  • HY-W012595
    Benzylideneacetone
    		Inhibitor 99.66%
    Benzylideneacetone (Benzalacetone) is an orally active antibiotic, tyrosinase inhibitor, phospholipase A2 inhibitor, and immunosuppressant. Benzylideneacetone has antibacterial activity against some gram-negative plant-pathogenic bacteria. Benzylideneacetone can also be used in the synthesis of chemicals and drugs, and as a flavoring additive for some foods.
    Benzylideneacetone
Cat. No. Product Name / Synonyms Application Reactivity