Propargyl-PEG1-NHS ester

DBCO-PEG4-NHS Ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DBCO-PEG4-NHS Ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Character of Yingtai laboratory scale freeze dryer

Small size, and light weight

Compact construction of tabletop freeze dryer

Suitable for small samples drying

Advantage of Yingtai 3kgs smallest lab scale freeze dryer 

3kg water capture capacity, which can meet the needs of general laboratory freeze-drying capacity

-70°C ultra-low temperature cold trap, which can capture conventional organic solvents

Direct-capture coil cold trap with higher efficiency and better ice-catching effect

The cold trap and condenser coil are all Teflon anti-corrosion treatment, which can freeze-dry organic solvents

Large flat flange type silicone seal, effectively guarantee the vacuum tightness, no need to apply any auxiliary sealing silicone grease forever

One-button operation, the host and the vacuum pump are linked, no manual operation required

The Pirani vacuum sensor with automatic temperature compensation can accurately detect the vacuum degree in the chamber at each stage

Removable sample shelf with special holes for centrifuge tubes, making it easier to place and adjust the height

Various types of chambers and T-frame configurations can fully meet the user’s sample placement

Vacuum pumps and sample placement chambers can be freely combined according to user needs, making the configuration more flexible and convenient

Techinical parameter