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N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide

4-马来酰亚胺-2,2,6,6-四甲基-1-哌啶氧基自由基

Also known as: 4-Maleimido-TEMPO, 4-Maleimido-2,2,6,6-tetramethyl-1-piperidinyloxy, 4-Maleimido-2,2,6,6-tetramethyl-1-piperidinyloxy, free radical, 4-(2,5-Dihydro-2,5-dioxo-1H-pyrrol-1-yl)-2,2,6,6-tetramethyl-1-piperidinyloxy, 4-Maleimido-2,2,6,6-tetramethylpiperidinooxy, TEMPO-Maleimide, MAL 6, 4-Maleimido-2,2,6,6-tetramethylpiperidine-1-oxyl, 2,2,6,6-Tetramethyl-4-maleimidopiperidine-1-oxyl

N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide (CAS 15178-63-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H19N2O3 and a molecular weight of 251.30200 g/mol. It is also known as 4-Maleimido-TEMPO, 4-Maleimido-2,2,6,6-tetramethyl-1-piperidinyloxy and 4-Maleimido-2,2,6,6-tetramethyl-1-piperidinyloxy, free radical. Key properties include a melting point of 91-94ºC, a boiling point of 376.5ºC at 760mmHg, a density of 1.195g/cm3 and a flash point of 181.5ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
15178-63-9
Jingsj CID
J-30352-3
Molecular Formula
C13H19N2O3
Chinese Name
4-马来酰亚胺-2,2,6,6-四甲基-1-哌啶氧基自由基
Molecular Weight
251.30200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point91-94ºC
Boiling Point376.5ºC at 760mmHg
Density1.195g/cm3
Flash Point181.5ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide?

The CAS number of N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide is 15178-63-9.

What are the molecular formula and molecular weight of N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide?

N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide has molecular formula C13H19N2O3 and molecular weight 251.30200 g/mol.

Is N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide hazardous?

N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "N-(1-Oxyl-2,2,6,6-tetramethyl-4-piperidinyl)maleimide (CAS 15178-63-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30352-3 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.