ChemicalBook >> CAS DataBase List >>Propargyl-PEG5-t-butyl ester

Propargyl-PEG5-t-butyl ester

CAS No.
1245823-50-0
Chemical Name:
Propargyl-PEG5-t-butyl ester
Synonyms
Propargyl-PEG5-COOtBu;PropargylPEG5-tBu ester;Propargyl-PEG4-C2-COOtBu;Alkyne-PEG5-CH2CH2COOtBu;Propargyl-PEG4-CH2CH2-Boc;PROPARGYL-PEG5-CH2CH2COOTBU;Propargyl-PEG5-t-butyl ester;1-Boc-3,6,9,12,15-pentaoxaoctadec-17-yne;tert-butyl 4,7,10,13,16-pentaoxanonadec-18-ynoate;4,7,10,13,16-Pentaoxanonadec-18-ynoic acid, 1,1-dimethylethyl ester
CBNumber:
CB73048734
Molecular Formula:
C18H32O7
Molecular Weight:
360.44
MDL Number:
MFCD22201534
MOL File:
1245823-50-0.mol
MSDS File:
SDS
Last updated:2026-05-28 02:55:45

Propargyl-PEG5-t-butyl ester Properties

Boiling point 420.6±40.0 °C(Predicted)
Density 1.045±0.06 g/cm3(Predicted)
storage temp. Storage temp. 2-8°C
form Liquid
color Colorless to light yellow

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

Propargyl-PEG5-t-butyl ester price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-0106532 Propargyl-PEG4-CH2CH2-Boc ≥97% 1245823-50-0 250mg $30 2026-06-04 Buy
ChemScene CS-0106532 Propargyl-PEG4-CH2CH2-Boc ≥97% 1245823-50-0 500mg $60 2026-06-04 Buy
ChemScene CS-0106532 Propargyl-PEG4-CH2CH2-Boc ≥97% 1245823-50-0 1g $94 2026-06-04 Buy
ChemScene CS-0106532 Propargyl-PEG4-CH2CH2-Boc ≥97% 1245823-50-0 5g $508 2026-06-04 Buy
Apolloscientific BIPG1746 Propargyl-PEG5-t-butyl ester 95% 1245823-50-0 250mg $37 2026-06-04 Buy
Product number Packaging Price Buy
CS-0106532 250mg $30 Buy
CS-0106532 500mg $60 Buy
CS-0106532 1g $94 Buy
CS-0106532 5g $508 Buy
BIPG1746 250mg $37 Buy

Propargyl-PEG5-t-butyl ester Chemical Properties,Uses,Production

Description

Propargyl-PEG5-t-butyl ester has one of the functional groups protected by t-butyl group. The protection can be removed under acidic conditions. The propargyl group forms triazole linkages with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The PEG units help improving the water-solubility of the molecule in aqueous media.

Uses

Propargyl-PEG4-CH2CH2-Boc is a non-cleavable ADC linker that can be used to synthesize ADC inhibitors of Galectin-3. Propargyl-PEG4-CH2CH2-Boc is a PEG- and Alkyl/ether-based PROTAC linker that can be used in the synthesis of PROTACs[1]. Propargyl-PEG4-CH2CH2-Boc is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

IC 50

Non-cleavable Linker; Alkyl/ether

References

[1] Zhang H, et al. Thiodigalactoside-Bovine Serum Albumin Conjugates as High-Potency Inhibitors of Galectin-3: An Outstanding Example of Multivalent Presentation of Small Molecule Inhibitors. Bioconjug Chem. 2018 Apr 18;29(4):1266-1275. DOI:10.1021/acs.bioconjchem.8b00047

1663-39-4
87450-10-0
1245823-50-0
Synthesis of Propargyl-PEG5-t-butyl ester from tert-Butyl acrylate and Propargyl-PEG5-alcohol

Propargyl-PEG5-t-butyl ester Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 62)Suppliers
Supplier Tel Email Country ProdList Advantage
Alabiochem Tech.Co., Ltd. 512-58900862 400-0707518 sales@alabiochem.com China 988 59
Chengdu Pukang Biotechnology Co., Ltd 18217049878 cassie.gao@pu-kang.com China 479 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
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
Zhengzhou Acme Chemical Co., Ltd. 0371-0371-55629727 13323845623 2885676761@qq.com China 9948 58
Amatek Scientific Co. Ltd. 0512-56316828 400-867-5858;400-867-5858 info@amateksci.com China 28763 58
Jiaxing Deyi Chemical Co., Ltd. 86-0573-85866609 18367600069 945717149@qq.com China 9507 58
Aikon International Limited 025-58851090 13913916777 sales01@aikonchem.com China 15947 58

View Lastest Price from Propargyl-PEG5-t-butyl ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Propargyl-PEG5-COOtBu pictures 2026-07-24 Propargyl-PEG5-COOtBu
1245823-50-0
1g 98% 1g/bottle, 10g/bottle, 100g/bottle XIAMEN SINOPEG BIOTECH CO., LTD.
Propargyl-PEG4-CH2CH2-Boc pictures 2026-05-11 Propargyl-PEG4-CH2CH2-Boc
1245823-50-0
10g TargetMol Chemicals Inc.
Propargyl-PEG5-COOtBu pictures 2025-06-07 Propargyl-PEG5-COOtBu
1245823-50-0
1g >98.00% 1g Xian confluore Biological Technology Co., Ltd.

Propargyl-PEG5-t-butyl ester Spectrum

Alkyne-PEG5-CH2CH2COOtBu PROPARGYL-PEG5-CH2CH2COOTBU Propargyl-PEG5-t-butyl ester Propargyl-PEG5-COOtBu tert-Butyl 3-(2-{2-[2-(2-prop-2-ynyloxyethoxy)ethoxy]ethoxy}ethoxy)propanoate Propargyl-PEG4-CH2CH2-Boc 4,7,10,13,16-Pentaoxanonadec-18-ynoic acid, 1,1-dimethylethyl ester PropargylPEG5-tBu ester Propargyl-PEG4-CH2CH2COOtBu/4,7,10,13,16-Pentaoxanonadec-18-ynoic acid, 1,1-dimethylethyl ester Propargyl-PEG4-C2-COOtBu tert-butyl 3-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]propanoate 1-Boc-3,6,9,12,15-pentaoxaoctadec-17-yne tert-butyl 4,7,10,13,16-pentaoxanonadec-18-ynoate 1245823-50-0 peg