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 99.98%
    (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-78700
    4-Bromobenzoic acid
    		Inhibitor 99.85%
    4-Bromobenzoic acid is a tyrosinase inhibitor (IC50 range 0-0.3 mg/mL). 4-Bromobenzoic acid can be metabolized through the protocatechuic acid (PCA) pathway. 4-Bromobenzoic acid can be used for research on cosmetic whitening or pigmentation conditions.
    4-Bromobenzoic acid
  • HY-N2443
    Tribuloside
    		Activator 99.26%
    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-N0754
    Eupalinolide A
    		Inhibitor 99.92%
    Eupalinolide A is a Yes-associated protein (YAP) degrader and HSP70 inducer. Eupalinolide A inhibits osteogenic differentiation of tendon-derived stem cells (TDSCs). Eupalinolide A induces autophagy in hepatocellular carcinoma cells via activating the ROS/ERK signaling pathway. Eupalinolide A protects PAM212 cells from UVB-, Menadione (HY-B0332)-, or heat shock-induced apoptosis. Eupalinolide A alleviates trauma-induced heterotopic ossification (HO) of Achilles tendon and inhibits growth of MHCC97-L and HCCLM3 hepatocellular carcinoma xenograft tumors in mice. Eupalinolide A can be used for the study of traumatic heterotopic ossification of tendons and hepatocellular carcinoma.
    Eupalinolide A
  • HY-119529
    Jineol
    		Inhibitor 99.68%
    Jineol is a cytotoxic alkaloid from the centipede Scolopendra subspinipes. Jineol exhibits modest cytotoxic activity in vitro against the growth of human tumor cell lines.
    Jineol
  • HY-155978A
    RDN2150 TFA
    		Inhibitor 99.80%
    RDN2150 (Compound 25) TFA is a ZAP-70 inhibitor (IC50: 14.6 nM). RDN2150 TFA covalently binds to the C346 residue of ZAP-70. RDN2150 TFA inhibits the expression of CD25 and CD69, and inhibits CD4+ T cell activation. RDN2150 TFA can be used for research of psoriasis.
    RDN2150 TFA
  • HY-N3266
    Methyl rosmarinate
    		Inhibitor 99.89%
    Methyl rosmarinate is an orally active hydroxycinnamic acid. Methyl rosmarinate exhibits an IC50 of 24.70 μM and a Ki of 15.29 μM against PTP1B, an IC50 of 41.46 μg/mL against BChE, a Ki of 0.61 mM against mushroom tyrosinase, and an IC50 of 2.50 μM against SARS-CoV-2 3CLpro. Methyl rosmarinate downregulates the phosphorylation levels of ERK, JNK, p38, Smad2 and Smad3. Methyl rosmarinate activates erythrocyte BPGM and promotes the production of 2,3-BPG. Methyl rosmarinate induces apoptosis of fibroblasts. Methyl rosmarinate prolongs the survival time of hypoxic mice. Methyl rosmarinate improves insulin sensitivity. Methyl rosmarinate binds to SARS-CoV-2 3CLpro and inhibits viral replication. Methyl rosmarinate induces glioblastoma cell death. Methyl rosmarinate activates the TGR5/AMPK axis and reduces the levels of ROS and MDA. Methyl rosmarinate shows inhibitory activity against MMP-1. Methyl rosmarinate can be used in research related to pulmonary fibrosis, hypoxia-induced injury, type 2 diabetes, Alzheimer's disease, hyperpigmentation disorders, COVID-19, glioblastoma and myocardial ischemia-reperfusion injury.
    Methyl rosmarinate
  • HY-129997
    Luteolinidin chloride
    		Inhibitor 99.91%
    Luteolinidin chloride is a deoxyanthocyanidin isolated from the plant Sorghum bicolor with antioxidant activity. Luteolinidin chloride is a potent CD38 inhibitor (Ki=11.4 μM) and protects the heart from ischemia/reperfusion injury by preserving endothelial nitric oxide synthase (eNOS) function and preventing endothelial dysfunction. Luteolinidin chloride is also a competitive inhibitor of tyrosinase (IC50=3.7 μM) and blocks the production of melanin.
    Luteolinidin chloride
  • HY-I0400R
    N-Acetylneuraminic acid (Standard)
    		Inhibitor
    N-Acetylneuraminic acid (Standard) is the analytical standard of N-Acetylneuraminic acid. This product is intended for research and analytical applications. N-Acetylneuraminic acid (NANA; Lactaminic acid), a nonphenolic structure, is the predominant form of sialic from Collocalia esculenta. N-Acetylneuraminic acid plays a biological role in myocardial injury, melanoma and viral or bacterial infection. N-Acetylneuraminic acid inhibits melanogenesis by reducing tyrosinase activity and triggers myocardial injury in vitro and in vivo by activation of the Rho/Rho-associated signaling pathway through binding to RhoA and Cdc42. N-Acetylneuraminic acid may prevent high fat diet (HFD)-induced inflammation and oxidative stress, thereby prevents hyperlipidemia-associated inflammation and oxidative stress. N-Acetylneuraminic acid is promising for research in the field of melanoma, coronary artery, obesity-related diseases and hyperlipidemia.
    N-Acetylneuraminic acid (Standard)
  • 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-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-P2527
    Tyrosinase-related Protein 2 (TRP-2) (181-188)
    		99.06%
    Tyrosinase-related Protein 2 (TRP-2) (181-188) is a tyrosinase-related protein 2 (TRP-2)-derived peptide, corresponding to residues 180-188. Tyrosinase-related Protein 2 (TRP-2) (181-188) is the major reactive epitope within TRP-2 recognized by anti-B16 CTLs. Tyrosinase-related Protein 2 (TRP-2) (181-188) is a peptide conforming to the MHC class I H2-Kb binding motif.
    Tyrosinase-related Protein 2 (TRP-2) (181-188)
  • HY-N2460
    Aloesin
    		Inhibitor 99.81%
    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-133680
    β-Tocopherol
    		Inhibitor 99.64%
    β-Tocopherol is an analogue of vitamin E, exhibits antioxidant properties. β-Tocopherol can inhibit tyrosinase activity and melanin synthesis. β-Tocopherol also can prevent the inhibition of cell growth and of PKC activity caused by d-alpha-tocopherol.
    β-Tocopherol
  • 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-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-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-N3516
    Oxyresveratrol 2-O-β-D-glucopyranoside
    		Inhibitor 98.93%
    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-N4005
    Isoastilbin
    		Inhibitor 99.23%
    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