m-PEG12-propargyl

NH-bis(PEG4-Propargyl) is a bifunctional PEG compound containing two terminal alkynes that are joined together at a secondary amine. Terminal alkynes are reactive towards azides in copper (I) click chemistry to form stable triazoles with the target compound. The secondary amine joining the two arms can be used as a nucleophile such as in alkylation via reductive amination or in forming amides with carboxylic acids or activated NHS esters. The use of a central amine also allows for hydrogen bonding, further increasing this compound’s water solubility.

NH-bis(PEG4-Propargyl) is a bifunctional PEG compound containing two terminal alkynes that are joined together at a secondary amine. Terminal alkynes are reactive towards azides in copper (I) click chemistry to form stable triazoles with the target compound. The secondary amine joining the two arms can be used as a nucleophile such as in alkylation via reductive amination or in forming amides with carboxylic acids or activated NHS esters. The use of a central amine also allows for hydrogen bonding, further increasing this compound’s water solubility.

Overview

• The preservative provides sample homogeneity eliminating sample variability
• Preserve and transport DNA & RNA safely at ambient temperature
• Nucleic acid preservation at room temperature over 2 years for DNA and 7 days for RNA
• No cold shipping/storage needed – hassle-free and cost effective
• Isolate nucleic acids for any application including 16s NGS
• Robust preservation over a range of temperatures
• Customizable with various accessories for easy and safe collection
• Eliminates odor and renders samples safe and non-infectious

Norgen’s Stool Nucleic Acid Collection and Preservation Tubes are designed for the rapid preservation of nucleic acids from fresh stool specimens. The Stool Nucleic Acid Collection and Preservation Tubes contain Norgen’s Stool Preservative in a liquid format. The user simply collects stool into the tubes (fill up to the line indicated on the tube) and mixes gently until the stool is well submerged under the preservative. The Stool Preservative prevents the growth of Gram-negative and Gram-positive bacteria and fungi, and also inactivates viruses allowing the resulting non-infectious samples to be handled and shipped safely. In addition, the Stool Preservative eliminates the need to immediately process or freeze samples and allows the samples to be shipped to centralized testing facilities at ambient temperatures. The components of the Stool Preservative allow samples to be stored at room temperature for over 2 years for DNA and 7 days for RNA. To extend the stool RNA stability in the preservative, storage at -20°C or -70°C is recommended at the arrival to testing facilities until the RNA purification.

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Details

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Kit Specifications
Stool Input	2 g
Stability of Stool Nucleic Acids at Room Temperature	2 years for DNA 7 days for RNA*

* The RNA stability will vary depending on the samples

Storage Conditions and Product Stability

All tubes should be kept tightly sealed and stored at room temperature (15 – 25 °C) for 2 years after the date of shipment without any reduction in performance.

Kit Components	Cat. 45660
Stool Nucleic Acid Collection and Preservation Tubes	50
Product Insert	1