TCO-PEG4-DBCO is a heterobifunctional click chemistry reagent containing a TCO and a DBCO moiety. TCO group specifically and efficiently reacts with terrahydrazine at fast speed. DBCO is very reactive toward Azide through copper free click chemistry, the PEG spacer increases the aqueous solubility of the reagent. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Detail
TCO-PEG4-DBCO is a heterobifunctional click chemistry reagent containing a TCO and a DBCO moiety. TCO group specifically and efficiently reacts with terrahydrazine at fast speed. DBCO is very reactive toward Azide through copper free click chemistry, the PEG spacer increases the aqueous solubility of the reagent. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Other Products
Ultrapure Nuclease-Free Water
Product Info
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Product Info
ASTM Type I Water
Produced by reverse osmosis, ion-exchange, electro-deionization, ultrafiltration, UV treatment (UVC & 185 nm), 0.1 μm membrane filtration
Nuclease-free, protease-free, endotoxin-free
Suitable for molecular biology applications (qPCR, NGS etc.)
Suitable for cell culture applications
Produced in an ISO certified GMP laboratory
Water system is routinely monitored for compliance with QC standards
The Norgen water purification system has been designed in conjunction with experts from Millipore Sigma. The Ultrapure NFW is purified in a two-stage process. The first stage, to produce type II water, includes pre-treatment with activated charcoal and polyphosphate, this water then undergoes reverse osmosis, electro-deionization and ion exchange to remove contaminants as well as UV treatment for disinfection. The Pure water then flows to a second system in a clean room with an additional 4 layers of purification. After passing through an additional ion exchange column, the water is then subjected to Ultrafiltration to remove particulates, bacteria, & ionic contaminants down to trace level, the water is then treated with UV light (182 nm wavelength) to break down organic matter. Lastly a second Ultrafilter for the production of pyrogen-, nuclease- and bacteria-free water at 18.2 MΩ. This water is of utmost purity and suitable for direct use in molecular biology applications such as qPCR and NGS, as well as cell culture and other applications.
Product Specifications
pH
n/a (highly pure water does not contain enough ions for an exact pH determination.)
Recommended Storage
Room Temperature
Grade
Ultrapure (ASTM Type I)
Biological Activity
DNase-, RNase-, Protease-, Endotoxin- Free
TOCs
< 50 ppb
Resistivity
> 18 MΩ-cm
Treatment
Not DEPC-Treated
Quantity
100 mL, 500 mL, 1000 mL
Purification Methods
Activated charcoal, polyphosphate, reverse osmosis, electro-deionization, ion exchange, UV, ultrafiltration
Shipping Conditions
Room Temperature
Details
Applications For use in any molecular biology application
Storage Conditions Norgen’s Nuclease-Free Water should be stored at room temperature. Storage at +4°C or -20°C is optional.
Precautions and Disclaimers This product is designed for research purposes only. It is not intended for human or diagnostic use.
Round well with ‘U’ bottom to aid mixing, pelleting and washing
High uniformity from well to well
Raised well rims for reliable closing with heat sealing.
Easy and reliable stacking
Good centrifugation stability up to 6,000 × g for faster protocols and improved sample quality
Manufactured under DNase/ RNase free environment without slip agents, plasticizers or biocides – Materials which could have a negative effect on bioassays
Pure, virgin polypropylene guarantees good extractible performance, high resistance to chemicals, good mechanical stress and working with temperature extremes
Autoclavable (121 °C, 20 min)
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Working Volume of 2.0ml
Round well with ‘U’ bottom to aid mixing, pelleting and washing
High uniformity from well to well
Raised well rims for reliable closing with heat sealing.
Easy and reliable stacking
Good centrifugation stability up to 6,000 × g for faster protocols and improved sample quality
Manufactured under DNase/ RNase free environment without slip agents, plasticizers or biocides – Materials which could have a negative effect on bioassays
Pure, virgin polypropylene guarantees good extractible performance, high resistance to chemicals, good mechanical stress and working with temperature extremes
Autoclavable (121 °C, 20 min)
DBCO-PEG2-PFP ester is a PEG active ester consisting of a DBCO group which can react with azides under copper free conditions. The PFP ester is an active ester which can react with amine groups. PFP esters have been are stable compounds and are less susceptible to undergo hydrolysis. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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DBCO-PEG2-PFP ester is a PEG active ester consisting of a DBCO group which can react with azides under copper free conditions. The PFP ester is an active ester which can react with amine groups. PFP esters have been are stable compounds and are less susceptible to undergo hydrolysis. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.