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2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical

2,2,5,5-四甲基-3-咪唑啉-1-氧基羧酸钠

Also known as: 2,2,5,5-TETRAMETHYL-3-IMIDAZOLINE-1-OXYL-CARBOXYLIC ACID, SODIUM SALT, FREE RADICAL

2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical (CAS 33156-75-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H15N2NaO3+ and a molecular weight of 222.21700 g/mol. It is also known as 2,2,5,5-TETRAMETHYL-3-IMIDAZOLINE-1-OXYL-CARBOXYLIC ACID, SODIUM SALT, FREE RADICAL. Key properties include a melting point of 300ºC, a boiling point of 328.4ºC at 760 mmHg and a flash point of 152.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33156-75-1
Jingsj CID
J-1361219-3
Molecular Formula
C9H15N2NaO3
Chinese Name
2,2,5,5-四甲基-3-咪唑啉-1-氧基羧酸钠
Molecular Weight
222.21700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300ºC
Boiling Point328.4ºC at 760 mmHg
Flash Point152.4ºC

Frequently Asked Questions

What is the CAS number of 2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical?

The CAS number of 2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical is 33156-75-1.

What are the molecular formula and molecular weight of 2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical?

2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical has molecular formula C9H15N2NaO3+ and molecular weight 222.21700 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2,5,5-tetramethyl-3-imidazoline-1-oxyl-carboxylic acid, sodium salt, free radical (CAS 33156-75-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361219-3 (accessed 2026-10-25).

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