DBCO-PEG4-SE
Synonym(s):DBCO-PEG4-NHS ester;DBCO-PEG4-SE;DBCO-PEG4-succinimidyl ester
- CAS NO.:1427004-19-0
- Empirical Formula: C34H39N3O10
- Molecular Weight: 649.69
- MDL number: MFCD26793797
- Update Date: 2026-06-16 21:18:09
What is DBCO-PEG4-SE?
Description
DBCO-PEG4-NHS Ester is a click chemistry PEG reagent containing NHS ester that is able to react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions.
The Uses of DBCO-PEG4-SE
Succinimidyl ester (NHS, amine reactive) functionalized cyclooctyne derivative for incorporation of the cyclooctyne moiety into amine containing compounds or biomolecules. Cyclooctynes are useful in strain-promoted copper-free click chemistry 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.
Applications Include:
- Protein-peptide conjugates
- Antibody-enzyme or antibody-drug conjugates
- Protein or peptide-oligonucleotide conjugates
- Surface modification
Properties of DBCO-PEG4-SE
| Density | 1.33±0.1 g/cm3(Predicted) |
| storage temp. | -20°C |
| solubility | Soluble in DMSO, DCM, DMF |
| pka | 15.14±0.46(Predicted) |
| color | Colourless to yellow |
Safety information for DBCO-PEG4-SE
| 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. 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-SE
| InChIKey | RRCXYKNJTKJNTD-UHFFFAOYSA-N |
| SMILES | C(ON1C(=O)CCC1=O)(=O)CCOCCOCCOCCOCCNC(=O)CCC(N1CC2=CC=CC=C2C#CC2=CC=CC=C12)=O |
New Products
Dibenzoyl-L-tartaric acid Anhydrous (Resolution Reagent) 2-Bromo-5-hydroxybenzoic acid. 1-(4-methoxyphenyl)-4-(4-Nitrophenyl)Piperazine (IT-1) 4-Fluorophenylglycine 1-N-Boc-3-(aminoethyl)azetidine Dimedone 1-Boc-3-(cyanomethyl)azetidine N-BOC-piperidine-4-carboxylic acid 1-Benzhydrylazetane-3-carbonitrile 5-Amino-2-Hydroxypyridine 2-Amino-5-Iodopyridine 2-BROMOACETYL BROMIDE-D2 METHANE SULFONIC ACID-D4 PHOSPORIC ACID-D3 85 W% IN D2O DEUTERIUM OXIDE FOR NMR BENZENE-D6 TOLUENE-D3 6-Chloro-pyrimidine-2,4-diamine 3-Oxide 1-Acetyl-4-(4-hydroxyphenyl)piperazine 1-(3-Chlorophenyl)piperazine hydrochlorideRelated products of tetrahydrofuran




![2-(4-Ethyl-1-piperazinyl)-4-[4-(4-ethyl-1-piperazinyl)phenyl]-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine](https://img.chemicalbook.in/CAS/20200331/GIF/CB23039001.gif)

You may like
-
Dbco-peg4-nhs ester 95% CAS 1427004-19-0View Details
1427004-19-0 -
Dibenzocyclooctyne-PEG4-N-hydroxysuccinimidyl ester CASView Details -
1-(4-Aminophenyl)-4-(4-methoxyphenyl)Piperazine 74852-62-3View Details
74852-62-3 -
556-08-1 4-Acetamidobenzoic acidView Details
556-08-1 -
5-Bromo-2-Chlorobenzoic acid 21739-92-4View Details
21739-92-4 -
36476-86-5 1-Benzhydrylazetane-3-carbonitrile 98+View Details
36476-86-5 -
36476-86-5 1-Benzhydrylazetane-3-carbonitrile 98+View Details
36476-86-5 -
36476-86-5 1-Benzhydrylazetane-3-carbonitrile 98+View Details
36476-86-5

