Propargyl-PEG4-methane is a crosslinking reagent that can react with azide-bearing compounds or biomolecules in copper catalyzed Click Chemistry to yield a stable triazole linkage. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Detail
Propargyl-PEG4-methane is a crosslinking reagent that can react with azide-bearing compounds or biomolecules in copper catalyzed Click Chemistry to yield a stable triazole linkage. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Other Products
HCM023 Fraser Broth Base
Product Info
Document
Product Info
Introduction
Intended Use
For selective enrichment culture of Listeria monocytogenes in food.
Principle and Interpretation
Tryptone, proteose peptone, meat extract, yeast paste powder provide nitrogen sources, vitamins, amino acids, and growth factors; sodium chloride can maintain a balanced osmotic pressure; sodium dihydrogen phosphate and potassium dihydrogen phosphate as buffering agents; esculin are fermentable sugars; lithium chloride and other antibiotics can inhibit Gram negative bacteria and most Gram positive bacteria.
Formulation
Ingredients
/liter
Enzymatic digest of animal tissues ( Proteose peptone)
5.0g
Enzymatic digest of casein ( Tryptone)
5.0g
Meat extract
5.0g
Yeast extract
5.0g
Sodium chloride
20.0g
Disodium hydrogen phosphate dihydrate
12.0g
Potassium dihydrogen phosphate
1.35g
Aesculin
1.0g
Lithium chloride
3.0g
pH7.2±0.2 at 25°C
Preparation
Suspend 57.4g in 1 L of distilled or deionized water. Heat with frequent agitation and boil to completely dissolve the powder. Distribute into flasks. Autoclave at 121℃ for 15 minutes. Cool to 45-50℃,aseptically add the contents of 1 vial of Fraser Selective Supplement (SR0120) to each 225 mL of base to prepare FB1 solution; Add one reagent (SR0130) to each100 mL of FB2 culture medium to prepare FB2 enrichment solution.
Quality Control
Cultural characteristics observed after incubation at 35-37°C for 46~50 hours
2-30℃,Keep container tightly closed, avoid direct sunlight.
Use before expiry date on the label.
Precautions
1. When weighing the dehydrated medium, please wear masks to avoid causing respiratory system discomfort
2. Keep container tightly closed after using to prevent clumping.
Waste Disposal
Microbiological contamination was disposed by autoclaving at 121°C for 30 minutes.
Revision
On June 14, 2024
References
ISO 11290
Document
Intended Use For selective enrichment culture of Listeria monocytogenes in food. Principle and Interpretation Tryptone, proteose peptone, meat extract, yeast paste powder provide nitrogen ……
Checkit Go enables you to easily measure the volumes dispensed by a robot or multi-channel pipette, in under 10 seconds. These models measure up to 8 channels at a time and are offered in volume ranges covering 2μL to 50μL.
Please choose the model that matches your volume range:
Model
Volume Range
5 μL Volumetric Verification Kit
2-5 μL
10 μL Volumetric Verification Kit
4-10 μL
20 μL Volumetric Verification Kit
8-20 μL
50 μL Volumetric Verification Kit
20-50 μL
Document
Checkit Go enables you to easily measure the volumes dispensed by a robot or multi-channel pipette, in under 10 seconds. These models measure up to 8 channels at a time and are offered in volume ranges covering 2μL to 50μL.
Please choose the model that matches your volume range: