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760749

Sigma-Aldrich

Dibenzocyclooctyne-PEG4-biotin conjugate

for Copper-free Click Chemistry

Synonym(s):

Polyethylene glycol, DBCO-PEG4-biotin

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About This Item

Empirical Formula (Hill Notation):
C39H51N5O8S
CAS Number:
1255942-07-4
Molecular Weight:
749.92
MDL number:
MFCD22572661
UNSPSC Code:
12352003
PubChem Substance ID:
329766893
NACRES:
NA.22

form

solid

reaction suitability

reaction type: click chemistry

storage temp.

−20°C

SMILES string

O=C(CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12)NCCOCCOCCOCCOCCC(=O)NCCC(=O)N3Cc4ccccc4C#Cc5ccccc35

InChI

1S/C39H51N5O8S/c45-35(12-6-5-11-34-38-32(28-53-34)42-39(48)43-38)41-18-20-50-22-24-52-26-25-51-23-21-49-19-16-36(46)40-17-15-37(47)44-27-31-9-2-1-7-29(31)13-14-30-8-3-4-10-33(30)44/h1-4,7-10,32,34,38H,5-6,11-12,15-28H2,(H,40,46)(H,41,45)(H2,42,43,48)/t32-,34-,38-/m0/s1

InChI key

LNHSQAOQVNHUGL-QRBHCBQLSA-N

General description

This azadibenzocyclooctyne-biotin derivative is a versatile biotinylation reagent for labeling azide containing molecules or compounds. Cyclooctynes are useful in strain-promoted copper-free azide-alkyne cycloaddition reactions.This dibenzocyclooctyne will react with azide-functionalized compounds or biomolecules without the need for a Cu(I) catalyst to result in a stable triazole linkage. Subsequent labeled molecules can be purified using streptavidin or avidin affinity reagents. The PEG spacer makes the overall compound more hydrophilic and allows for greater distance between the reaction site with the azide and the biotin detecting group.

Application

Automate your Biotin tagging with Synple Automated Synthesis Platform (SYNPLE-SC002)

Features and Benefits

More efficient labeling will occur at higher temperatures and with greater excess of biotin reagent. Typical reaction times are up to 4 hours, but longer incubation periods should be used if concentration is low or if low labeling is observed. Product is most efficient when first dissolved in a water miscible organic solvent and then diluted in aqueous reaction buffer when needed. DBCO-PEG4-Biotin is soluble in aqueous buffers up to 0.35 mM.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW9228
MKCW1749
MKCV6019
MKCS6695
MKCT1884

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Ning, X., et al.
Angewandte Chemie (International Edition in English), 47, 2253-2255 null
Andrew Vila et al.
Chemical research in toxicology, 21(2), 432-444 (2008-02-01)
Polyunsaturated fatty acids (PUFA) are primary targets of free radical damage during oxidative stress. Diffusible electrophilic alpha,beta-unsaturated aldehydes, such as 4-hydroxynonenal (HNE), have been shown to modify proteins that mediate cell signaling (e.g., IKK and Keap1) and alter gene expression
Guillaume Charron et al.
Journal of the American Chemical Society, 131(13), 4967-4975 (2009-03-14)
Fatty-acylation of proteins in eukaryotes is associated with many fundamental cellular processes but has been challenging to study due to limited tools for rapid and robust detection of protein fatty-acylation in cells. The development of azido-fatty acids enabled the nonradioactive
Daniela C Dieterich et al.
Nature protocols, 2(3), 532-540 (2007-04-05)
A major aim of proteomics is the identification of proteins in a given proteome at a given metabolic state. This protocol describes the step-by-step labeling, purification and detection of newly synthesized proteins in mammalian cells using the non-canonical amino acid
Jeremy M Baskin et al.
Proceedings of the National Academy of Sciences of the United States of America, 104(43), 16793-16797 (2007-10-19)
Dynamic imaging of proteins in live cells is routinely performed by using genetically encoded reporters, an approach that cannot be extended to other classes of biomolecules such as glycans and lipids. Here, we report a Cu-free variant of click chemistry
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