DBCO-PEG4-biotin
Synonym(s):DBCO-PEG4-biotin
- CAS NO.:1255942-07-4
- Empirical Formula: C39H51N5O8S
- Molecular Weight: 749.92
- MDL number: MFCD22572661
- Update Date: 2026-04-20 17:00:22
What is DBCO-PEG4-biotin?
Description
DBCO-PEG4-biotin is a click chemistry biotinylation that can enable copper-free click chemistry with azide molecules to form a stable triazole linkage. PEG4 spacer increases aqueou solubility of the molecules conjugated to the biotin compound.
The Uses of DBCO-PEG4-biotin
DBCO-PEG4-Biotin is used in preparation of array-based cyclic peptide libraries.
The Uses of DBCO-PEG4-biotin
activity-based protein profiling detection of newly synthesized proteins immobilization of azide-labeled biomolecules.
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.
Storage
Store at -20°C
Properties of DBCO-PEG4-biotin
| Boiling point: | 1062.4±65.0 °C(Predicted) |
| Density | 1.30±0.1 g/cm3(Predicted) |
| storage temp. | -20°C |
| solubility | Soluble in Water, DMSO, DMF, DCM |
| pka | 13.90±0.40(Predicted) |
| form | Solid |
| color | Off-white to yellow |
Safety information for DBCO-PEG4-biotin
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for DBCO-PEG4-biotin
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