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8.51029

Sigma-Aldrich

N-Biotinyl-NH-(PEG)₂-COOH . DIPEA (20 atoms)

Novabiochem®

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Synonym(s):
N-Biotinyl-NH-(PEG)₂-COOH . DIPEA (20 atoms), O-(N-Biotinyl-3-aminopropyl)-O′-(N-glutaryl-3-aminopropyl)-diethyleneglycol · DIPEA
Empirical Formula (Hill Notation):
C25H44N4O8S · xC8H19N
CAS Number:
Molecular Weight:
560.70

Quality Level

product line

Novabiochem®

Assay

≥95.0% (HPLC)
≥98% (TLC)

form

powder

reaction suitability

reaction type: Biotinylations

manufacturer/tradename

Novabiochem®

mp

131-136 °C

application(s)

peptide synthesis

storage temp.

2-8°C

General description

The use of this novel biotin derivative incorporates a hydrophilic 20 atom PEG spacer between the peptide and biotin. This not only greatly improves the solubility of the resultant peptide, but reduces steric hindrance between the peptide and biotin, leading to better avidin binding and higher biological activity. The biotin-PEG derivative can be easily incorporated using any standard coupling method as the final step in SPPS, immediately prior to cleavage of the peptide from the resin.

Associated Protocols and Technical Articles

Biotinylation Reagents for Peptide Synthesis

Linkage

Replaces: 01-63-0133

Analysis Note

Color (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Identity (IR): passes test
Purity (TLC(CMA2)): ≥ 98 %
Assay (HPLC, area%): ≥ 95.0 % (a/a)
Solubility (50 mg in 1 ml NMP): clearly soluble

To see the solvent systems used for TLC of Novabiochem® products please click here.

Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Articles

Biotinylation Reagents

Biotin-labelled peptides have many important applications in immunology and histochemistry, such as affinity purification and FRET-based flow cytometry, solid-phase immunoassays, and receptor localization, that exploit the high affinity of streptavidin and avidin for biotin.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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