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4-arm-PEG-SH

CAS No.
188492-68-4
Chemical Name:
4-arm-PEG-SH
Synonyms
4-ARM PEG-SH;4-ArM PEGn-SH;4-ArmPEG-SH average Mw5000;4-ArmPEG-SH average Mw2000;4-ArmPEG-SH average Mw20000;4-ArM PEGn-SH 2K, 5K, 10K, 20K;Four arms - polyethylene glycol - sulfhydryl;2-[2-[3-[2-(2-sulfanylethoxy)ethoxy]-2,2-bis[2-(2-sulfanylethoxy)ethoxymethyl]propoxy]ethoxy]ethanethiol;Poly(oxy-1,2-ethanediyl), α-hydro-ω-(2-mercaptoethoxy)-, ether with 2,2-bis(hydroxymethyl)-1,3-propanediol (4:1)
CBNumber:
CB02654355
Molecular Formula:
(C2H4O)n(C2H4O)n(C2H4O)n(C2H4O)nC13H28O4S4
Molecular Weight:
0
MDL Number:
MOL File:
188492-68-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 17:40:33

4-arm-PEG-SH Properties

Melting point 54 °C
InChI InChI=1S/C21H44O8S4/c30-13-9-22-1-5-26-17-21(18-27-6-2-23-10-14-31,19-28-7-3-24-11-15-32)20-29-8-4-25-12-16-33/h30-33H,1-20H2
InChIKey IUINCQVOTHNGMF-UHFFFAOYSA-N
SMILES C(CO{-}CC{+n}OCCS)(CO{-}CC{+n}OCCS)(CO{-}CC{+n}OCCS)CO{-}CC{+n}OCCS

SAFETY

Risk and Safety Statements

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

4-arm-PEG-SH price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
aablocks AA00AVGC 4-arm-PEG-SH 97%averageMw5000 188492-68-4 100mg $20 2026-05-28 Buy
aablocks AA00AVGC 4-arm-PEG-SH 97%averageMw2000 188492-68-4 1g $174 2026-05-28 Buy
Arctom HT-10226 4-ArmPEG-SH ≥95% 1g $76 2026-05-26 Buy
Arctom HT-10226 4-ArmPEG-SH ≥95% 5g $335 2026-05-26 Buy
Product number Packaging Price Buy
AA00AVGC 100mg $20 Buy
AA00AVGC 1g $174 Buy
HT-10226 1g $76 Buy
HT-10226 5g $335 Buy

4-arm-PEG-SH Chemical Properties,Uses,Production

Uses

4-arm-PEG-SH can specifically couple with molecules containing functional groups such as maleimide and iodoacetamide through the thiol group, and can be used for the modification and labeling of biomolecules. In drug delivery systems, it can be used as a linker to connect drug molecules with target molecules or carriers to achieve targeted drug delivery.

Chemical Properties

Tetra-arm polyethylene glycol mercaptans are usually white or yellowish solid or liquid viscous depending on the molecular weight. The sulfhydryl group (SH) in its structure is a highly reactive functional group that can react with a wide range of chemicals, such as thiol-thiol coupling reactions and thiol-maleimide addition reactions.

4-arm-PEG-SH Preparation Products And Raw materials

Raw materials

Preparation Products

4-arm-PEG-SH Suppliers

Global( 44)Suppliers
Supplier Tel Email Country ProdList Advantage
Shandong Baostai Medical Materials Co. LTD 0531-95836715 15550029578 958367155@qq.com China 82 58
Jilin Chuangli Biotechnology Co.,Ltd. 19396231124 19396231124 317100529@qq.com China 797 58
Xi'an Kaixin Biotechnology Co., Ltd 029-68881181 13619217766 3495811982@qq.com China 2816 58
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Hunan HuaTeng Pharmaceutical Co., Ltd., 400-8592883 15367835770 sales@huatengsci.com China 5869 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Shanghai SuperLan Chemcial Technique Centre 0-2022843681 15618226720 chaolaichem@foxmail.com China 10000 58
Rhawn Reagent 400-400-1332688 18019345275 huyue@rhawn.cn China 14942 58
Zhengzhou Acme Chemical Co., Ltd. 037163312495 13303845143 1416159398@qq.com China 10151 58
Beijing Minruida Technology Co., Ltd. 010-82387566 sales@mreda.com.cn China 19323 58
4-ArM PEGn-SH 2K, 5K, 10K, 20K 4-ArmPEG-SH average Mw2000 4-ArmPEG-SH average Mw20000 Four arms - polyethylene glycol - sulfhydryl 4-ArmPEG-SH average Mw5000 2-[2-[3-[2-(2-sulfanylethoxy)ethoxy]-2,2-bis[2-(2-sulfanylethoxy)ethoxymethyl]propoxy]ethoxy]ethanethiol 4-ArM PEGn-SH Poly(oxy-1,2-ethanediyl), α-hydro-ω-(2-mercaptoethoxy)-, ether with 2,2-bis(hydroxymethyl)-1,3-propanediol (4:1) 4-ARM PEG-SH 188492-68-4 Polydispersed PEG peg