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MAK257

Sigma-Aldrich

Tyrosinase Inhibitor Screening Kit (Colorimetric)

sufficient for 100 colorimetric tests

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.25

application(s)

cosmetics
food and beverages

detection method

colorimetric

relevant disease(s)

dermatological diseases

storage temp.

−20°C

General description

Tyrosinase or polyphenol oxidase (EC 1.14.18.1), is an oxidoreductase that participates in the biosynthesis of melanin, a ubiquitous biological pigment found in hair, eyes, skin, etc. Inhibition of tyrosinase has been a long-time target in the skin health research, cosmetics and agricultural industries because of its role in browning reactions in skin pigmentation and during fruit harvesting and handling. Skin whitening and bleaching products utilize natural or synthetic tyrosinase inhibitors in order to lighten the skin color. Polyphenols, benzaldehyde derivatives, long-chain lipids, steroids, and natural compounds have been used as tyrosinase inhibitors.
Deficiency in tyrosinase causes albino, a condition in which the melanocytes are not able to produce melanin. This increases the risk of skin cancer.[1]

Features and Benefits

Compatible with high-throughput handling systems.

Suitability

Suitable for screening/studying/characterizing tyrosinase inhibitors.

Principle

Tyrosinase catalyzes the oxidation of tyrosine, producing a chromophore that can be detected at 510 nm. In the presence of kojic acid, a reversible inhibitor of tyrosinase, the rate of oxidation of the substrate is decreased. The kit provides a rapid, simple, sensitive, and reliable test suitable for high-throughput screening of tyrosinase inhibitors. The assay is also adaptable to a 384 well format.

Pictograms

Health hazardCorrosion
GHS08,GHS05

Signal Word

Danger

Hazard Statements

H318,H334

Hazard Classifications

Eye Dam. 1 - Resp. Sens. 1

Storage Class Code

10 - Combustible liquids

Flash Point(F)

188.6 °F

Flash Point(C)

87 °C

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Please refer to KIT Component information

PRTR

Please refer to KIT Component information

FSL

Please refer to KIT Component information

ISHL Indicated Name

Please refer to KIT Component information

ISHL Notified Names

Please refer to KIT Component information

Cartagena Act

Please refer to KIT Component information

JAN Code

キットコンポーネントの情報を参照してください

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
8K21K05750
8H11K05750
8B28K05750
7J08K05750
7D15K05750

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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. How many analisys this kit provide?

    1 answer

    1. This kit is sufficient to perform 100 tests in a 96-well plate format, including standards and duplicates. Please see the link below to review the product data sheet: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/125/489/mak257bul.pdf

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