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Alkyne Modifier II, NHS ester [PEG4 alkyne NHS ester]

Alkyne Modifier II, NHS ester is an alkyne-containing reagent that reacts with primary amines at pH 7-9 forming a stale amide bond. The terminal alkyne group reacts with azides by a mechanism known as the Cu-catalyzed click reaction enabling efficient and specific conjugation of derivatized molecules in biological samples. It is widely used to introduce an alkynyl group into amino-modified oligonucleotides, peptides, proteins and other biological molecules. Compared to Alkyne Modifier I, NHS ester (4531), it adds a longer PEG4 spacer arm to the modified molecules.

Calculators

Common stock solution preparation

Table 1. Volume of DMF needed to reconstitute specific mass of Alkyne Modifier II, NHS ester [PEG4 alkyne NHS ester] to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM249.122 µL1.246 mL2.491 mL12.456 mL24.912 mL
5 mM49.824 µL249.122 µL498.244 µL2.491 mL4.982 mL
10 mM24.912 µL124.561 µL249.122 µL1.246 mL2.491 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

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Page updated on December 17, 2024

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Catalog Number4533
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Physical properties

Molecular weight

401.41

Solvent

DMF

Storage, safety and handling

Intended useResearch Use Only (RUO)

Storage

Freeze (< -15 °C); Minimize light exposure

CAS

1393330-40-9