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DBCO-PEG5-NHS ester

CAS No.
2144395-59-3
Chemical Name:
DBCO-PEG5-NHS ester
Synonyms
DBCO-NH-PEG5-CH2CH2COONHS;4,7,10,13,16-Pentaoxa-19-azatricosanoic acid, 23-(11,12-didehydrodibenz[b,f]azocin-5(6H)-yl)-20,23-dioxo-, 2,5-dioxo-1-pyrrolidinyl ester
CBNumber:
CB44849429
Molecular Formula:
C36H43N3O11
Molecular Weight:
693.74
MDL Number:
MFCD22380747
MOL File:
2144395-59-3.mol
MSDS File:
SDS
Last updated:2026-07-18 07:23:31

DBCO-PEG5-NHS ester Properties

storage temp. -20°C, sealed storage, away from moisture and light
solubility Soluble in DMSO, DCM, DMF
form Oil
color Colorless to light yellow

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352-P305+P351+P338

DBCO-PEG5-NHS ester price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-0107985 DBCO-PEG5-NHS ester ≥95% 2144395-59-3 5mg $195 2026-06-04 Buy
ChemScene CS-0107985 DBCO-PEG5-NHS ester ≥95% 2144395-59-3 10mg $303 2026-06-04 Buy
ChemScene CS-0107985 DBCO-PEG5-NHS ester ≥95% 2144395-59-3 25mg $563 2026-06-04 Buy
ChemScene CS-0107985 DBCO-PEG5-NHS ester ≥95% 2144395-59-3 50mg $867 2026-06-04 Buy
ChemScene CS-0107985 DBCO-PEG5-NHS ester ≥95% 2144395-59-3 100mg $1300 2026-06-04 Buy
Product number Packaging Price Buy
CS-0107985 5mg $195 Buy
CS-0107985 10mg $303 Buy
CS-0107985 25mg $563 Buy
CS-0107985 50mg $867 Buy
CS-0107985 100mg $1300 Buy

DBCO-PEG5-NHS ester Chemical Properties,Uses,Production

Description

DBCO-PEG5-NHS Ester is a DBCO-containing PEG linker containing NHS ester that can 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. PEG5 spacer increases the water solubility of compounds in aqueous media. DBCO is commonly used for copper-free Click Chemistry reaction.

Biological Activity

DBCO-PEG5-NHS ester is a PROTAC linker, belonging to the PEG class and the Alkyl/ether class, for the synthesis of a series of PROTAC molecules. DBCO-PEG5-NHS ester is a cleavable ADC linker for the synthesis of antibody drug conjugates (ADCs).

in vitro

PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.

target

Cleavable

Alkyl/ether

PEGs

DBCO-PEG5-NHS ester Preparation Products And Raw materials

Raw materials

Preparation Products

DBCO-PEG5-NHS ester Suppliers

Global( 44)Suppliers
Supplier Tel Email Country ProdList Advantage
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Shanghai Send Pharmaceutical Technology Co., Ltd. 021-58088081 18317173152 Hailey@shsendpharm.com China 845 55
Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd 0431-80534353 19917294565 et@chemextension.com China 3904 55
Borenpharm Co., Ltd 027-65563561 sales@borenpharm.com China 1245 55
Shanghai EFE Biological Technology Co., Ltd. 021-65675885 18964387627 info@efebio.com China 9799 58
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
Wuhan Ruilida Biomedical Technology Co., Ltd. 18201884268 magean83@163.com China 2510 58
Shaanxi Xinyan Bomei Biotechnology Co., Ltd. 13892832556 2440688701@qq.com China 1977 58
Henan Lien Chemical Products Co., Ltd. 0371-63357898 15378766539 535046669@qq.com China 5744 58

View Lastest Price from DBCO-PEG5-NHS ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
DBCO-PEG5-NHS pictures 2026-07-24 DBCO-PEG5-NHS
2144395-59-3
1g 98% 1g/bottle, 10g/bottle, 100g/bottle XIAMEN SINOPEG BIOTECH CO., LTD.
DBCO-PEG5-NHS ester pictures 2026-07-17 DBCO-PEG5-NHS ester
2144395-59-3
10g TargetMol Chemicals Inc.
DBCO-PEG5-NHS ester pictures 2025-06-07 DBCO-PEG5-NHS ester
2144395-59-3
50mg >99.00% 250mg Xian confluore Biological Technology Co., Ltd.

DBCO-PEG5-NHS ester Spectrum

4,7,10,13,16-Pentaoxa-19-azatricosanoic acid, 23-(11,12-didehydrodibenz[b,f]azocin-5(6H)-yl)-20,23-dioxo-, 2,5-dioxo-1-pyrrolidinyl ester DBCO-NH-PEG5-CH2CH2COONHS 2144395-59-3 C36H43N3O11