ChemicalBook >> CAS DataBase List >>Mal-PEG5-t-butly ester

Mal-PEG5-t-butly ester

CAS No.
518044-36-5
Chemical Name:
Mal-PEG5-t-butly ester
Synonyms
Mal-PEG4-Boc;Mal-PEG4-OtBu;Mal-PEG4-COOtBu;MAL-PEG4-CH2CH2COOTBU;Mal-PEG4-t-butyl ester;Mal-PEG5-t-butly ester;MAL-dPEG4-t-butyl ester;Maleimide tetrapolyethylene glycol tert butyl propionate;tert-butyl 1-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3,6,9,12-tetraoxapentadecan-15-oate;4,7,10,13-Tetraoxapentadecanoic acid, 15-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-, 1,1-dimethylethyl ester
CBNumber:
CB93049629
Molecular Formula:
C19H31NO8
Molecular Weight:
401.45
MDL Number:
MFCD22683300
MOL File:
518044-36-5.mol
Last updated:2025-07-16 09:55:30
Product description Number Pack Size Price
Mal-PEG4-t-butylester 98% BP-21069 250mg $350
Mal-PEG4-t-butylester 98% BP-21069 500mg $490
Mal-PEG4-t-butylester 98% BP-21069 1g $680
MAL-PEG4-TERTBUTYL ESTER 95.00% POL0002473 100MG $761.25
MAL-PEG4-TERTBUTYL ESTER 95.00% POL0002473 500MG $1155
More product size

Mal-PEG5-t-butly ester Properties

Boiling point 499.9±40.0 °C(Predicted)
Density 1.156±0.06 g/cm3(Predicted)
storage temp. -20°C, stored under nitrogen
solubility DMSO : 100 mg/mL (249.10 mM; Need ultrasonic)
form Oil
pka -2.34±0.20(Predicted)
color Colorless to light yellow

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P280-P302+P352
HS Code  3404200000

Mal-PEG5-t-butly ester price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
BroadPharm BP-21069 Mal-PEG4-t-butylester 98% 518044-36-5 250mg $350 2021-12-16 Buy
BroadPharm BP-21069 Mal-PEG4-t-butylester 98% 518044-36-5 500mg $490 2021-12-16 Buy
BroadPharm BP-21069 Mal-PEG4-t-butylester 98% 518044-36-5 1g $680 2021-12-16 Buy
American Custom Chemicals Corporation POL0002473 MAL-PEG4-TERTBUTYL ESTER 95.00% 518044-36-5 100MG $761.25 2021-12-16 Buy
American Custom Chemicals Corporation POL0002473 MAL-PEG4-TERTBUTYL ESTER 95.00% 518044-36-5 500MG $1155 2021-12-16 Buy
Product number Packaging Price Buy
BP-21069 250mg $350 Buy
BP-21069 500mg $490 Buy
BP-21069 1g $680 Buy
POL0002473 100MG $761.25 Buy
POL0002473 500MG $1155 Buy

Mal-PEG5-t-butly ester Chemical Properties,Uses,Production

Description

Mal-PEG4-t-butyl ester is a PEG linker containing a maleimide group and a t-butyl ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

Uses

Mal-PEG4-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

Mal-PEG5-t-butly ester Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 40)Suppliers
Supplier Tel Email Country ProdList Advantage
TargetMol Chemicals Inc.
+1-781-999-5354; +17819995354 marketing@targetmol.com United States 32470 58
Wuhan Borenpharm Co., Ltd
027-65563561 18717150066 3207347307@qq.com CHINA 1238 58
Career Henan Chemica Co
+86-0371-86658258 +8613203830695 laboratory@coreychem.com China 30229 58
XIAMEN SINOPEG BIOTECH CO., LTD.
+86-0592-7761068 +8617350879715 changaiwei@sinopeg.com China 1125 58
Nextpeptide Inc
+86-0571-81612335 +8613336028439 sales@nextpeptide.com China 19908 58
Jilin Chinese Academy of Sciences-yanshen Technology
+undefined18143011203 info@chemextension.com China 42056 58
Xian confluore Biological Technology Co., Ltd.
+86-15680926068 1924344760@confluore.cn China 2997 58
Aladdin Scientific
tp@aladdinsci.com United States 52923 58
Chongqing Chemdad Co., Ltd
+86-023-6139-8061 +86-86-13650506873 sales@chemdad.com China 39927 58
Hunan HuaTeng Pharmaceutical Co., Ltd., 400-8592883 sales@huatengsci.com China 5873 58

View Lastest Price from Mal-PEG5-t-butly ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Mal-PEG4-COOtBu pictures 2025-06-07 Mal-PEG4-COOtBu
518044-36-5
US $0.00 / g 1g >98.00% 1g Xian confluore Biological Technology Co., Ltd.
  • Mal-PEG4-COOtBu pictures
  • Mal-PEG4-COOtBu
    518044-36-5
  • US $0.00 / g
  • >98.00%
  • Xian confluore Biological Technology Co., Ltd.

Mal-PEG5-t-butly ester Spectrum

Mal-PEG4-COOtBu Mal-PEG5-t-butly ester Mal-PEG4-t-butyl ester MAL-dPEG4-t-butyl ester MAL-PEG4-CH2CH2COOTBU Mal-PEG4-OtBu Mal-PEG4-Boc 4,7,10,13-Tetraoxapentadecanoic acid, 15-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-, 1,1-dimethylethyl ester tert-butyl 1-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-3,6,9,12-tetraoxapentadecan-15-oate Mal-PEG4-CH2CH2COOtBu/4,7,10,13-Tetraoxapentadecanoic acid, 15-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-, 1,1-dimethylethyl ester Maleimide tetrapolyethylene glycol tert butyl propionate 518044-36-5 C19H31NO8 peg