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Hydroxy-PEG9-t-butyl ester

CAS No.
2055042-66-3
Chemical Name:
Hydroxy-PEG9-t-butyl ester
Synonyms
tert-Butyl 1-Hydroxy-3,6,9,12,15,18,21,24,27-nonaoxatriacontan-30-oate;HO-PEG9-TBA;OH-PEG9-COOtBu;HO-PEG9-COOtBu;Hydroxy-PEG9-Boc;CAS_2055042-66-3;HO-PEG9-CH2CH2COOtBu;Alcohol-PEG10-t-Bu Ester;Hydroxy-PEG9-t-butyl ester;4,7,10,13,16,19,22,25,28-Nonaoxatriacontanoic acid, 30-hydroxy-, 1,1-dimethylethyl ester
CBNumber:
CB23162974
Molecular Formula:
C25H50O12
Molecular Weight:
542.66
MDL Number:
MFCD30182029
MOL File:
2055042-66-3.mol
MSDS File:
SDS
Last updated:2026-05-28 00:12:09

Hydroxy-PEG9-t-butyl ester Properties

storage temp. 2-8°C
solubility Soluble in Water, DMSO, DCM, DMF
form Liquid
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

Hydroxy-PEG9-t-butyl ester price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-0115296 Hydroxy-PEG9-Boc ≥98% 2055042-66-3 100mg $17 2026-06-04 Buy
ChemScene CS-0115296 Hydroxy-PEG9-Boc ≥98% 2055042-66-3 250mg $31 2026-06-04 Buy
ChemScene CS-0115296 Hydroxy-PEG9-Boc ≥98% 2055042-66-3 500mg $57 2026-06-04 Buy
ChemScene CS-0115296 Hydroxy-PEG9-Boc ≥98% 2055042-66-3 1g $85 2026-06-04 Buy
ChemScene CS-0115296 Hydroxy-PEG9-Boc ≥98% 2055042-66-3 5g $424 2026-06-04 Buy
Product number Packaging Price Buy
CS-0115296 100mg $17 Buy
CS-0115296 250mg $31 Buy
CS-0115296 500mg $57 Buy
CS-0115296 1g $85 Buy
CS-0115296 5g $424 Buy

Hydroxy-PEG9-t-butyl ester Chemical Properties, Uses, Production

Description

Hydroxy-PEG9-t-butyl ester is a PEG linker containing a hydroxyl group with a t-butyl ester. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Uses

Hydroxy-PEG9-Boc 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

Hydroxy-PEG9-t-butyl ester Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 56)
Supplier Tel Email Country ProdList Advantage
Nanjing Junnahe Biopharmaceutical Co., Ltd 025-58367986 17351780683 amy.xiang@ally-chem.com China 354 60
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
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
Amatek Scientific Co. Ltd. 0512-56316828 400-867-5858;400-867-5858 info@amateksci.com China 28760 58
SHANGHAI FDC-CHEMICAL CO.,LTD 021-61469567 13774476675 sales@fdc-chemical.com China 10000 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

View Latest Price from Hydroxy-PEG9-t-butyl ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
tert-butyl 1-hydroxy-3,6,9,12,15,18,21,24,27-nonaoxatriacontan-30-oate pictures 2026-07-24 tert-butyl 1-hydroxy-3,6,9,12,15,18,21,24,27-nonaoxatriacontan-30-oate
2055042-66-3
1g 98% XIAMEN SINOPEG BIOTECH CO., LTD.
OH-PEG9-COOtBu pictures 2026-07-24 OH-PEG9-COOtBu
2055042-66-3
1g 98% 1g/bottle, 10g/bottle, 100g/bottle XIAMEN SINOPEG BIOTECH CO., LTD.
Hydroxy-PEG9-Boc pictures 2026-04-20 Hydroxy-PEG9-Boc
2055042-66-3
10g TargetMol Chemicals Inc.

Hydroxy-PEG9-t-butyl ester Spectrum

Hydroxy-PEG9-t-butyl ester HO-PEG9-CH2CH2COOtBu HO-PEG9-COOtBu CAS_2055042-66-3 Hydroxy-PEG9-Boc 4,7,10,13,16,19,22,25,28-Nonaoxatriacontanoic acid, 30-hydroxy-, 1,1-dimethylethyl ester HO-PEG9-CH2CH2COOtBu/4,7,10,13,16,19,22,25,28-Nonaoxatriacontanoic acid, 30-hydroxy-, 1,1-dimethylethyl ester OH-PEG9-COOtBu Alcohol-PEG10-t-Bu Ester HO-PEG9-TBA tert-Butyl 1-Hydroxy-3,6,9,12,15,18,21,24,27-nonaoxatriacontan-30-oate 2055042-66-3 C25H50O12