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
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() 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 |
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
| Supplier | Tel | 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 | |
|---|---|---|---|---|---|---|---|---|
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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. | |||
![]() |
2026-07-24 | OH-PEG9-COOtBu
2055042-66-3
|
1g | 98% | 1g/bottle, 10g/bottle, 100g/bottle | XIAMEN SINOPEG BIOTECH CO., LTD. | ||
![]() |
2026-04-20 | Hydroxy-PEG9-Boc
2055042-66-3
|
10g | TargetMol Chemicals Inc. |
-

- tert-butyl 1-hydroxy-3,6,9,12,15,18,21,24,27-nonaoxatriacontan-30-oate
2055042-66-3
- 98%
- XIAMEN SINOPEG BIOTECH CO., LTD.
-

- OH-PEG9-COOtBu
2055042-66-3
- 98%
- XIAMEN SINOPEG BIOTECH CO., LTD.
-

- Hydroxy-PEG9-Boc
2055042-66-3
- $0.00
- TargetMol Chemicals Inc.





