4-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]benzaldehyde

 CAS No.: 153364-63-7  Cat No.: BP-500677  Purity: ≥95% 4.5  

4-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]benzaldehyde is a benzaldehyde-functionalized, poly(ethylene glycol)–type ether linker featuring a para-substituted aldehyde that can serve as a reactive handle for PROTAC assembly. The extended, flexible oligo(ethylene glycol) chain provides conformational mobility and hydrophilicity, which can help reduce steric constraints and improve solubility of conjugates during synthesis and biological evaluation. In targeted protein degradation workflows, this aldehyde group is well suited for forming reversible or covalent linkages with complementary amine-bearing warheads or ubiquitin-recruiting ligands, enabling controlled spatial positioning between the two binding domains. By acting as a modular spacer, the linker can tune effective interdomain distance and orientation, thereby influencing ternary complex formation and degradation potency. This compound is therefore valuable for researchers optimizing linker length and physicochemical properties in PROTAC design, particularly when solubility and flexibility are key determinants of experimental success.

4-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]benzaldehyde

Structure of 153364-63-7

Quality
Assurance

Worldwide
Delivery

24/7 Customer
Support
Category
PROTAC Linker
Molecular Formula
C14H20O5
Molecular Weight
268.31
Appearance
Pale Yellow or Colorless Oily Liquid

* For research and manufacturing use only. Not for human or clinical use.

SizePriceStockQuantity
-- $-- In stock

Looking for different specifications? Click to request a custom quote!

Capabilities & Facilities

  • Comprehensive PROTAC Platform
  • Scientific Expertise & Technical Support
  • Custom Synthesis & Design Service
  • Extensive Product Coverage
  • Cutting-Edge Innovation
  • Fast Delivery & Global Support
  • 24/7 customer service
  • 100% quality assurance
Popular Publications Citing BOC Sciences Products
Purity
≥95%
Solubility
Soluble in DCM, DMF, DMSO
Appearance
Pale Yellow or Colorless Oily Liquid
Storage
Store at 2-8°C
Shipping
Room temperature in continental US; may vary elsewhere.
IUPACName
4-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]benzaldehyde
Synonyms
m-PEG4-benzaldehyde; m-PEG4-Ph-CHO; m-PEG3-Ph-CHO; p-(1,4,7,10-Tetraoxaundecyl)benzaldehyde; 4-(1,4,7,10-Tetraoxaundecane-1-yl)benzaldehyde; Benzaldehyde, 4-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-
Boiling Point
383.8±32.0°C at 760 mmHg
Density
1.1±0.1 g/cm3
InChI Key
HBUXIDOVXGFYFZ-UHFFFAOYSA-N
InChI
InChI=1S/C14H20O5/c1-16-6-7-17-8-9-18-10-11-19-14-4-2-13(12-15)3-5-14/h2-5,12H,6-11H2,1H3
SMILES
COCCOCCOCCOC1=CC=C(C=C1)C=O
1. [Screening and identification of the upregulators of ATP-binding cassette transporter A1]
Yan-Ni Xu, Jie Gao, Yang Xu, Ji-Kai Liu, Fang-Fang Lai, Ye-Xiang Wu, Bin Hong, Shu-Yi Si Yao Xue Xue Bao. 2012 Apr;47(4):446-51.
ATP-binding cassette transporter A1 (ABCA1) promotes cholesterol and phospholipid efflux from cells to lipid-poor apolipoprotein A-I (apoA-I), and plays a key role in the initial steps of the whole process of reverse cholesterol transport (RCT). Upregulation of ABCA1 is beneficial for atherosclerosis (AS) prevention and/or therapy, which indicated that ABCA1 was a target for anti-AS drug development. In the previous study, a high-throughput screening method was established using ABCA1p-LUC HepG2 cell line to find the upregulators of ABCA1. In the present study, compound 2030421B was found using this method, with EC50 of 0.50 microg x mL(-1). The compound was further identified as an upregulator of ABCA1 expression by real-time quantitative reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting analysis. Studies also showed that the 2030421B could induce apoA-I-mediated cholesterol efflux and inhibit lipids uptake into mouse peritoneal macrophages RAW264.7.

This benzaldehyde-functional linker is designed to enable efficient assembly of PROTAC constructs by providing a chemically addressable aldehyde handle for conjugation to ligand scaffolds. Its poly(ethylene glycol)-like ether character supports conformational flexibility and improved solubility of linker–ligand hybrids, which can be beneficial for targeted protein degradation workflows. The detailed structural and reactivity considerations are provided below to support experimental design and coupling strategy selection.

Structure: The molecule is a benzaldehyde-bearing aromatic core substituted with an oligo(ethylene glycol) ether chain. It contains an aldehyde functional group, multiple ether linkages, and a phenyl ring, with polar ether oxygen atoms that promote hydrogen-bonding and favorable solvation behavior.

Reactivity: The aldehyde group is suitable for standard PROTAC linker conjugation routes that rely on aldehyde electrophilicity, including reductive amination with primary amines to form stable secondary amines. Typical conditions use amine partners, mild reducing agents, and polar organic solvents; reaction performance is often improved by controlling pH and minimizing competing hydrolysis or oxidation.

Stock concentration: *
Desired final volume: *
Desired concentration: *

L

* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O c22h30n40
g/mol
g

Related Product Recommendations

BOC Sciences Support

Please contact us with any specific requirements and we will get back to you as soon as possible.


  • Verification code

We invite you to contact us at or through our contact form above for more information about our services and products.

USA
  • International:
  • US & Canada (Toll free):
  • Email:
  • Fax:
Germany
Inquiry Basket