N-(Azido-PEG3)-N-Boc-PEG4-NHS ester
- CAS No.
- 2112731-96-9
- Chemical Name:
- N-(Azido-PEG3)-N-Boc-PEG4-NHS ester
- Synonyms
- HUN 31969;N3-PEG4-Boc-PEG4-SPA;N-(Azido-PEG4)-N-Boc-PEG4-NHS ester;N-(Azido-PEG3)-N-Boc-PEG4-NHS ester
- CBNumber:
- CB03373695
- Molecular Formula:
- C28H49N5O13
- Molecular Weight:
- 663.71436
- MDL Number:
- MFCD30723220
- MOL File:
- 2112731-96-9.mol
- MSDS File:
- SDS
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS02 |
|---|---|
| Signal word | Danger |
| Hazard statements | H225 |
| Precautionary statements | P501-P240-P210-P233-P243-P241-P242-P280-P370+P378-P303+P361+P353-P403+P235 |
N-(Azido-PEG3)-N-Boc-PEG4-NHS ester price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| ChemScene | CS-0107151 | N-(Azido-PEG4)-N-Boc-PEG4-NHS ester ≥95% | 2112731-96-9 | 100mg | $532 | 2026-06-04 | Buy |
| ChemScene | CS-0107151 | N-(Azido-PEG4)-N-Boc-PEG4-NHS ester ≥95% | 2112731-96-9 | 250mg | $911 | 2026-06-04 | Buy |
| ChemScene | CS-0107151 | N-(Azido-PEG4)-N-Boc-PEG4-NHS ester ≥95% | 2112731-96-9 | 1g | $3644 | 2026-06-04 | Buy |
| BroadPharm | bp-23586 | N-(Azido-PEG3)-N-Boc-PEG4-NHS ester 95% | 2112731-96-9 | 100MG | $330 | 2026-05-24 | Buy |
| BroadPharm | bp-23586 | N-(Azido-PEG3)-N-Boc-PEG4-NHS ester 95% | 2112731-96-9 | 250MG | $570 | 2026-05-24 | Buy |
N-(Azido-PEG3)-N-Boc-PEG4-NHS ester Chemical Properties, Uses, Production
Description
N-(Azido-PEG3)-N-Boc-PEG4-NHS ester is a branched PEGylation reagent with a terminal azide group (N3), a Boc protected amine (NH2), and a terminal NHS ester.The azide group enables PEGylation via Click Chemistry. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The protected amine can be deprotected under acidic conditions.
Uses
N-(Azido-PEG4)-N-Boc-PEG4-NHS ester is a PEG-based PROTAC linker with a terminal azide group. N-(Azido-PEG4)-N-Boc-PEG4-NHS ester is used in the synthesis of PROTACs[1] N-(Azido-PEG4)-N-Boc-PEG4-NHS ester is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
IC 50
PEGs
References
[1] Kanazaki K, et al. Feasibility of poly(ethylene glycol) derivatives as diagnostic drug carriers for tumor imaging. J Control Release. 2016 Mar 28;226:115-23. DOI:10.1016/j.jconrel.2016.02.017
N-(Azido-PEG3)-N-Boc-PEG4-NHS ester Preparation Products And Raw materials
Raw materials
Preparation Products
N-(Azido-PEG3)-N-Boc-PEG4-NHS ester Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd | 0431-80534353 19917294565 | et@chemextension.com | China | 3904 | 55 |
| Xi'an Confluore Biological Technology Co., Ltd. | +86-156-80926068 +86-15680926068 | 1924344760@qq.com | China | 4229 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +1-00000000000 | marketing@targetmol.com | United States | 32431 | 58 |
| Shanghai Minhan Pharmaceutical Technology Co., Ltd. | 17612188245 | 2816925681@qq.com | China | 8316 | 58 |
| Shanghai Haohong Pharmaceutical Co., Ltd. | 400-8210725 4008210725 | malulu@leyan.com | China | 54996 | 58 |
| Zhengzhou Akem Chemical Co., Ltd | 13303867194 | 770406999@qq.com | China | 9949 | 58 |
| Nantong Hanfang Biotechnology Co. , Ltd. | hanfangpharma@126.com 18017580634 | hanfangpharma@126.com | China | 25800 | 58 |
| TargetMol Chemicals Inc. | 15002134094 | marketing@targetmol.cn | China | 29874 | 58 |
| Henan Mengtai Pharmaceutical Technology Co., Ltd | 17634413542 | 1959525201@qq.com | China | 9011 | 58 |
| Suzhou Derivative Biotechnology Co., Ltd. | 13915541704 | 2436368162@qq.com | China | 707 | 58 |
View Latest Price from N-(Azido-PEG3)-N-Boc-PEG4-NHS ester manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2025-06-07 | N-(Azido-PEG3)-N-Boc-PEG4-NHS ester
2112731-96-9
|
500mg | >95.00% | 500mg | Xian confluore Biological Technology Co., Ltd. |
-

- N-(Azido-PEG3)-N-Boc-PEG4-NHS ester
2112731-96-9
- $0.00
- >95.00%
- Xian confluore Biological Technology Co., Ltd.





