Carboxy-PTIO potassium salt

羧基-PTIO钾盐

Also known as: Carboxy-PTIO, 2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt, Carboxy-PTIO, Potassium Salt, MFCD00216153, Potassium [2-(4-carboxylatophenyl)-4,4,5,5-tetramethyl-3-oxido-4,5-dihydro-1H-imidazol-1-yl]oxidanyl, 1H-Imidazol-1-yloxy, 2-(4-carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-3-oxido-, potassium salt (1:1)

Carboxy-PTIO potassium salt (CAS 148819-94-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H17KN2O4 and a molecular weight of 315.386 g/mol. It is also known as Carboxy-PTIO, 2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt and Carboxy-PTIO, Potassium Salt. Key properties include a melting point of 141-143°C, a boiling point of 456.3ºC at 760 mmHg and a flash point of 229.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 148819-94-7
Jingsj CID: J-27930-1
Molecular Formula: C₁₄H₁₇KN₂O₄
Chinese Name: 羧基-PTIO钾盐
Molecular Weight: 315.386 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	141-143°C
Boiling Point	456.3ºC at 760 mmHg
Flash Point	229.7ºC
Exact Mass	315.074707
PSA	69.29000
LogP	1.75670
Additional Property	H2O: >20 mg/mL

Activity & Biological Data

Additional Information	[1]. Hao He, et al.Nitric oxide induces apoptosis and autophagy; autophagy down-regulates NO synthesis in physalin A-treated A375-S2 human melanoma cells.Food Chem Toxicol. 2014 Sep;71:128-35. [2]. T Akaike, et al. Antagonistic action of imidazolineoxyl N-oxides against endothelium-derived relaxing factor/.NO through a radical reaction. Biochemistry. 1993 Jan 26;32(3):827-32. [3]. M Yoshid, et al. Therapeutic effects of imidazolineoxyl N-oxide against endotoxin shock through its direct nitric oxide-scavenging activity. Biochem Biophys Res Commun. 1994 Jul 29;202(2):923-30.

Additional Information

[1]. Hao He, et al.Nitric oxide induces apoptosis and autophagy; autophagy down-regulates NO synthesis in physalin A-treated A375-S2 human melanoma cells.Food Chem Toxicol. 2014 Sep;71:128-35. [2]. T Akaike, et al. Antagonistic action of imidazolineoxyl N-oxides against endothelium-derived relaxing factor/.NO through a radical reaction. Biochemistry. 1993 Jan 26;32(3):827-32. [3]. M Yoshid, et al. Therapeutic effects of imidazolineoxyl N-oxide against endotoxin shock through its direct nitric oxide-scavenging activity. Biochem Biophys Res Commun. 1994 Jul 29;202(2):923-30.

Frequently Asked Questions

What is the CAS number of Carboxy-PTIO potassium salt?

The CAS number of Carboxy-PTIO potassium salt is 148819-94-7.

What are the molecular formula and molecular weight of Carboxy-PTIO potassium salt?

Carboxy-PTIO potassium salt has molecular formula C14H17KN2O4 and molecular weight 315.386 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Carboxy-PTIO potassium salt (CAS 148819-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27930-1 (accessed 2026-10-28).

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