ChemicalBook >> CAS DataBase List >>Acid-PEG5-NHS ester

Acid-PEG5-NHS ester

CAS No.
1343476-41-4
Chemical Name:
Acid-PEG5-NHS ester
Synonyms
COOH-PEG5-SPA;COOH-PEG5-NHS;Acid-PEG5-NHS ester;COOH-PEG5-NHS ester;Acid-dPEG??-NHS ester;Acid-C2-PEG4-C2-NHS ester;4,7,10,13,16-Pentaoxanonadecanedioic acid, 1-(2,5-dioxo-1-pyrrolidinyl) ester;19-((2,5-dioxopyrrolidin-1-yl)oxy)-19-oxo-4,7,10,13,16-pentaoxanonadecanoic acid;19-[(2,5-Dioxopyrrolidin-1-yl)oxy]-19-oxo-4,7,10,13,16-pentaoxanonadecan-1-oic Acid
CBNumber:
CB03062294
Molecular Formula:
C18H29NO11
Molecular Weight:
435.42
MDL Number:
MFCD27952888
MOL File:
1343476-41-4.mol
MSDS File:
SDS
Last updated:2026-05-11 16:31:51

Acid-PEG5-NHS ester Properties

Boiling point 574.8±60.0 °C(Predicted)
Density 1.30±0.1 g/cm3(Predicted)
storage temp. Storage temp. -20°C
form Liquid
pka 4.28±0.10(Predicted)
color Colorless to light yellow

Acid-PEG5-NHS ester price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth TDC47641 Acid-PEG5-NHS ester 1343476-41-4 250mg $1080 2026-06-05 Buy
Biosynth TDC47641 Acid-PEG5-NHS ester 1343476-41-4 500mg $1500 2026-06-05 Buy
ChemScene CS-0107924 Acid-C2-PEG4-C2-NHS ester ≥98% 1343476-41-4 25mg $85 2026-06-04 Buy
ChemScene CS-0107924 Acid-C2-PEG4-C2-NHS ester ≥98% 1343476-41-4 50mg $139 2026-06-04 Buy
ChemScene CS-0107924 Acid-C2-PEG4-C2-NHS ester ≥98% 1343476-41-4 100mg $225 2026-06-04 Buy
Product number Packaging Price Buy
TDC47641 250mg $1080 Buy
TDC47641 500mg $1500 Buy
CS-0107924 25mg $85 Buy
CS-0107924 50mg $139 Buy
CS-0107924 100mg $225 Buy

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

Description

Acid-PEG5-NHS ester is a PEG linker containing a carboxylic acid and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

Uses

Acid-C2-PEG4-C2-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

IC 50

PEGs; Alkyl/ether

References

[1] An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 DOI:10.1016/j.ebiom.2018.09.005

Acid-PEG5-NHS ester Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 48)
Supplier Tel Email Country ProdList Advantage
Chengdu Pukang Biotechnology Co., Ltd 18217049878 cassie.gao@pu-kang.com China 480 58
Hunan HuaTeng Pharmaceutical Co., Ltd., 400-8592883 15367835770 sales@huatengsci.com China 5869 58
Borenpharm Co., Ltd 027-65563561 sales@borenpharm.com China 1245 55
Jinan elephant international trading co., LTD 13006575422@163.com China 6347 58
Zhengzhou Acme Chemical Co., Ltd. 0371-0371-55629727 13323845623 2885676761@qq.com China 9957 58
Xi'an Confluore Biological Technology Co., Ltd. +86-156-80926068 +86-15680926068 1924344760@qq.com China 4229 58
Alpha Biopharmaceuticals Co., Ltd 0411-39042497 sales@alphabiopharm.com China 1951 58
TargetMol Chemicals Inc. +1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
Nextpeptide Inc +86-0571-81612335 +8613336028439 sales@nextpeptide.com China 19904 58
Shaanxi Xinyan Bomei Biotechnology Co., Ltd. 13892832556 2440688701@qq.com China 1981 58

View Latest Price from Acid-PEG5-NHS ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Acid-C2-PEG4-C2-NHS ester pictures 2026-05-11 Acid-C2-PEG4-C2-NHS ester
1343476-41-4
$32.00 10g TargetMol Chemicals Inc.
Acid-PEG5-NHS ester pictures 2025-06-07 Acid-PEG5-NHS ester
1343476-41-4
100mg >98.00% 100mg Xian confluore Biological Technology Co., Ltd.
Acid-PEG5-NHS ester pictures 2025-04-04 Acid-PEG5-NHS ester
1343476-41-4
1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
Acid-PEG5-NHS ester COOH-PEG5-NHS Acid-C2-PEG4-C2-NHS ester 4,7,10,13,16-Pentaoxanonadecanedioic acid, 1-(2,5-dioxo-1-pyrrolidinyl) ester COOH-PEG5-SPA Acid-dPEG??-NHS ester COOH-PEG5-NHS ester 19-((2,5-dioxopyrrolidin-1-yl)oxy)-19-oxo-4,7,10,13,16-pentaoxanonadecanoic acid 19-[(2,5-Dioxopyrrolidin-1-yl)oxy]-19-oxo-4,7,10,13,16-pentaoxanonadecan-1-oic Acid 1343476-41-4 C18H29NO11 peg