PEG3-(Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane)-(Amino-Tri-(endo-BCN-PEG2-ethoxymethyl)-methane) is reactive with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The DBCO groups are commonly used for copper-free Click Chemistry reactions due to their strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility.
PEG3-(Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane)-(Amino-Tri-(endo-BCN-PEG2-ethoxymethyl)-methane) is reactive with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The DBCO groups are commonly used for copper-free Click Chemistry reactions due to their strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility.
Usages:
For differentiation of enterobacteriaceae.
Principle:
Peptone, beef extract powder and yeast extract powder provide nitrogen, vitamins, minerals; lactose, dextrose into fermentable sugars, which produce acid when measured by the phenol red indicator, acid yellow, basic red; thiosulfate sodium can be reduced to some bacteria to hydrogen sulfide, to produce a black iron sulfide and iron salts; sodium chloride to maintain osmotic equilibrium; agar as medium coagulant.
Formulation(per liter):
Peptone 20g
Beef extract powder 3g
Yeast extract powder 3g
Lactose 10g
Dextrose 1g
Sodium chloride 5g
Ferric ammonium citrate 0.5g
Sodium thiosulfate 0.5g
Agar 12g
Phenol red 0.05g
Final pH 7.4 ± 0.2
How to use:
1.Suspend 54.5g in 1L of distilled water , stirring heated to boiling ,autoclave at 121 for 15 minutes.
2.Diluted and treated samples.
Quality control:
| Item | The name and number of strain | Growth | Colony Color |
| 1 | Escherichia coli ATCC25922 | Good | A/A |
| 2 | Proteus CMCC (B) 49027 | Good | K/A |
| 3 | Salmonella typhimurium CMCC (B) 50115 | Good | K/A |
“A”Acid , “K” Alkality
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
500g
endo-BCN-PEG4-Biotin is a biotinylated PEG linker containing a BCN moiety for click chemistry and a PEG4 arm that imparts water solubility for the biotinylated molecule.
endo-BCN-PEG4-Biotin is a biotinylated PEG linker containing a BCN moiety for click chemistry and a PEG4 arm that imparts water solubility for the biotinylated molecule.
Propargyl-PEG9-alcohol is a crosslinker that can participate in copper catalyzed azide-alkyne Click Chemistry reactions to form stable triazole linkage. The PEG spacer increases the hydrophilicity of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG9-alcohol is a crosslinker that can participate in copper catalyzed azide-alkyne Click Chemistry reactions to form stable triazole linkage. The PEG spacer increases the hydrophilicity of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
