Methyl-PEG8-NHS ester

Also known as: m-PEG8-NHS ester, m-dPEG8-NHS ester, MPEG7-NHS, MPEG7-CH2CH2COONHS Ester, MeO-dPEG(8)-NHS, 4,7,10,13,16,19,22,25-Octaoxahexacosanoic acid 2,5-dioxo-1-pyrrolidinyl ester, 4,7,10,13,16,19,22,25-Octaoxahexacosanoic Acid N-Succinimidyl Ester, N-Succinimidyl 4,7,10,13,16,19,22,25-Octaoxahexacosanoate, 1-[(1-Oxo-4,7,10,13,16,19,22,25-octaoxahexacos-1-yl)oxy]-2,5-pyrrolidinedione, (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate, AmbotzPEG1885, M2187

Methyl-PEG8-NHS ester (CAS 756525-90-3) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C22H39NO12 and a molecular weight of 509.54500 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 756525-90-3
Jingsj CID: J-1958494-0
Molecular Formula: C₂₂H₃₉NO₁₂
Molecular Weight: 509.54500 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	509.24700
PSA	137.52000

Activity & Biological Data

Additional Information	[1]. By Boehnke, et al. Preparation of antibody drug conjugates with NAMPT inhibitors for use in treatment of cancer. Patent WO2019149637A1.

Frequently Asked Questions

What is the CAS number of Methyl-PEG8-NHS ester?

The CAS number of Methyl-PEG8-NHS ester is 756525-90-3.

What are the molecular formula and molecular weight of Methyl-PEG8-NHS ester?

Methyl-PEG8-NHS ester has molecular formula C22H39NO12 and molecular weight 509.54500 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Methyl-PEG8-NHS ester (CAS 756525-90-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958494-0 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.