DBCO-NHCO-PEG4-amine, TFA salt

*Optical system: equipped with infinity plan achromatic stress-free metallographic objective lens,built-in polarizing ober-vation device

*Observation head device:The lens barrel can be rotated 360 degrees,and the interpupillary distance adjustment range is 50-75MM

*Eyepiece configuration:random eyepiece WF10X /22mm;

*Objective:Infinity  plan  achromatic  strain-free   metallographic  objective;5X,10X,20X,50X

*Loading  platform:Stage:Tripod  XY  composite   mechanical  moving  stage; size 140X120MM, stroke 80X50MM, minimum reading value 0.1mm

XTL-20 series metallographic microscopes are equipped with infinity plan achromatic stress-free metallographic objective lens and Wide-angle eyepiece, with the characteristics of beautiful appearance, clear imaging, broad vision, convenient operation and so on, etc. It can be widely used in biology, medicine, industry, agriculture and other fields, and is an ideal instrument for medical, teaching, scientific research and other units
Model:
XTL-20

Brand:
Yingtai

Description

For rapid, sensitive and accurate screening of potential Tyrosinase inhibitors

Tyrosinase (EC 1.14.18.1) is a copper-binding enzyme that is expressed across a vast range of species ranging from bacteria and fungi to mammals. It is involved in two sequential reactions of the melanin synthesis pathway: first being the hydroxylation of a monophenol and second the conversion of an ortho-diphenol to a quinone. Quinone then undergoes a series of reactions including polymerization to form melanin.

Tyrosinase is of great interest to the agriculture industry since it causes browning of fruits, vegetable, and mushrooms, as well as to the cosmetic industry as it causes skin darkening. Development and screening of tyrosinase inhibitors, therefore, is very useful for conditions such as hyperpigmentation and melasma. Tyrosinase activity is significantly increased in melanoma. Therefore, the detection of tyrosinase activity could be promising as a specific diagnostic test for melanoma and may be useful in monitoring patient response to melanoma treatments.

This Tyrosinase Activity Assay Kit is a simple one-step, plate-based assay for the measurement of tyrosinase activity in biological samples. In this assay, tyrosinase catalyzes the conversion of a phenolic substrate to a Quinone intermediate, which reacts with the tyrosine enhancer forming a highly stable chromophore with absorbance at 520 nm. The assay can detect as low as 30 μU Tyrosinase in biological samples.

Highly reproducibility
Highly Sensitive Assay to Screen for Tyrosinase Activity
Stable formulation of ready to use Reaction Facilitator (tyrosinase)

tert-Butyl (2-(prop-2-yn-1-yloxy)ethyl)carbamate is crosslinker consisting of a propargyl group and a t-Boc protected amine group. The propargyl group reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry reactions. The t-Boc protected amine can be deprotected under mild acidic conditions. Reagent grade, for research use only.

tert-Butyl (2-(prop-2-yn-1-yloxy)ethyl)carbamate is crosslinker consisting of a propargyl group and a t-Boc protected amine group. The propargyl group reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry reactions. The t-Boc protected amine can be deprotected under mild acidic conditions. Reagent grade, for research use only.