Catalog No. Size PriceQuantity
M11640-2 2mg solid $80
M11640-10 10mg solid $240


Fmoc-NH-PEG4-CH2CH2COOH is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Fmoc-NH-PEG4-CH2CH2COOH is also a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

Product information

CAS Number: 557756-85-1

Molecular Weight: 487.54

Formula: C26H33NO8


Fmoc-15-amino-4,7,10,13-tetraoxapentadecanoic acid

Chemical Name: 1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3, 6, 9, 12-tetraoxapentadecan-15-oic acid



InChi: InChI=1S/C26H33NO8/c28-25(29)9-11-31-13-15-33-17-18-34-16-14-32-12-10-27-26(30)35-19-24-22-7-3-1-5-20(22)21-6-2-4-8-23(21)24/h1-8,24H,9-19H2,(H,27,30)(H,28,29)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 100 mg/mL (205.11 mM; Need ultrasonic)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.


  1. Cai P, et al. Synthesis of C3-Alkylated Indoles on DNA via Indolyl Alcohol Formation Followed by Metal-FreeTransfer Hydrogenation. Org Lett. 2019 Aug 14.

Products are for research use only. Not for human use.

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