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Carboxy-ptio

CAS No.
148819-94-7
Chemical Name:
Carboxy-ptio
Synonyms
Carboxy-ptio;Carboxy-PTIO,98%;Carboxy-PTIO (cPTIO);CARBOXY-PTIO POTASSIUM;CARBOXY-PTIO, POTASSIUM SALT;CarboxyPTIO potassium,Carboxy PTIO potassium;CARBOXY-PTIO POTASSIUM (2-(4-CARBOXYPHEN YL)-4,4,5,5-TETRAMETHYLIM;4-(4,4,5,5-tetramethyl-1,3-dioxidoimidazol-1-ium-2-yl)benzoic acid;2-(4-CARBOXYPHENYL)-4,4,5,5-TETRAMETHYL-IMIDAZOLINE-1-OXYL-3-OXIDE POTASSIUM;Carboxy-PTIO2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide
CBNumber:
CB0359762
Molecular Formula:
C14H16KN2O4*
Molecular Weight:
315.39
MDL Number:
MFCD00216153
MOL File:
148819-94-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:48:19

Carboxy-ptio Properties

Melting point 141-143°C
storage temp. 2-8°C
solubility H2O: >20 mg/mL
form solid
color blue
biological source synthetic (organic)
Water Solubility Soluble in water. Also soluble in ethanol, methanol, DMSO or DMF.
Stability Stable for 2 years as supplied. Solutions in DMSO or distilled water may be stored at -20°C for up to 1 month.
InChI 1S/C14H17N2O4.K/c1-13(2)14(3,4)16(20)11(15(13)19)9-5-7-10(8-6-9)12(17)18;/h5-8H,1-4H3,(H,17,18);/q;+1/p-1
InChIKey VYEUQMVIGXFZQU-UHFFFAOYSA-M
SMILES [K+].CC1(C)N([O])C(c2ccc(cc2)C([O-])=O)=[N+]([O-])C1(C)C
CAS DataBase Reference 148819-94-7(CAS DataBase Reference)
UNSPSC Code 12352200
NACRES NA.32

SAFETY

Risk and Safety Statements

PPE Eyeshields, Gloves, type N95 (US)
Safety Statements  24/25
WGK Germany  3
HS Code  2918999090
Storage Class 11 - Combustible Solids

Carboxy-ptio price More Price(45)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich C221 Carboxy-PTIO potassium salt 148819-94-7 10mg $199 2026-04-30 Buy
Cayman Chemical 81540 Carboxy-PTIO (potassium salt) ≥99% 148819-94-7 5mg $41 2026-04-30 Buy
Cayman Chemical 81540 Carboxy-PTIO (potassium salt) ≥99% 148819-94-7 10mg $70 2026-04-30 Buy
Cayman Chemical 81540 Carboxy-PTIO (potassium salt) ≥99% 148819-94-7 50mg $245 2026-04-30 Buy
Cayman Chemical 81540 Carboxy-PTIO (potassium salt) ≥99% 148819-94-7 100mg $448 2026-04-30 Buy
Product number Packaging Price Buy
C221 10mg $199 Buy
81540 5mg $41 Buy
81540 10mg $70 Buy
81540 50mg $245 Buy
81540 100mg $448 Buy

Carboxy-ptio Chemical Properties, Uses, Production

Description

A nitric oxide (NO) scavenger. Carboxy-PTIO (148819-94-7) reacts with NO with 1:1 stoichiometry1 producing NO2–/NO3–. In LPS-induced endotoxin shock, carboxy-PTIO reversed hypotension and renal dysfunction and increased survival in a rat model.2 A very useful tool for probing the involvement of NO in physiological processes.3,4

Chemical Properties

blue powder

Uses

A water soluble, stable organic free radical that reacts stoichiometrically with NO. Carboxy-PTIO converts NO to NO2 and does not dramatically affect other NO related metabolites. This scavenger allows for the specific investigation of the effect of NO.

Uses

Carboxy-PTIO is a NO scavenger. It reacts stoichiometrically with NO and can be used for EPR detection of NO.

Uses

Carboxy-PTIO potassium salt has been used to check the generation of hydroxyl radicals or nitric in reaction mixtures to examine the generation of nitric oxide in reaction mixture. It has also been added to neurons to analyse its effect on glucose/oxygen/serum deprivation (GOSD) condition(4)

Definition

ChEBI: Potassium 2-(4-carboxylatophenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide is a potassium salt having 2-(4-carboxylatophenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide as the counterion. It has a role as a radical scavenger and an apoptosis inhibitor. It is a potassium salt and an organic radical. It contains a carboxylato-PTIO.

General Description

2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide(carboxy-PTIO) is mainly considered as a scavenger of nitric oxide(NO).

Biological Activity

A stable, water-soluble free radical that reacts stoichiometrically with NO. Almost twice as strong an inhibitor as N( ω )-nitroarginine or N-methylarginine.

Biochem/physiol Actions

Carboxy-PTIO can make a quick reaction with nitric oxide(NO) to produce nitrogen dioxide (NO2). It can be used to prevent hypotension and endotoxic shock, stimulated by lipopolysaccharide in- vivo. Carboxy-PTIO can also block in vitro vascular relaxation, stimulated by NO.

storage

+4°C

References

[1] TAKAAKI AKAIKE. Antagonistic action of imidazolineoxyl N-oxides against endothelium-derived relaxing factor/.bul.NO (nitric oxide) through a radical reaction[J]. Biochemistry Biochemistry, 1993, 32 3: 827-832. DOI:10.1021/bi00054a013
[2] YOSHIDA M. Therapeutic Effects of Imidazolineoxyl N-Oxide Against Endotoxin Shock through Its Direct Nitric Oxide-Scavenging Activity[J]. Biochemical and biophysical research communications, 1994, 202 2: Pages 923-930. DOI:10.1006/bbrc.1994.2018
[3] MEGUMI HADA F A C Premkumar B Saganti. Nitric Oxide Is Involved in Heavy Ion-Induced Non-Targeted Effects in Human Fibroblasts.[J]. ACS Applied Materials & Interfaces, 2019. DOI:10.3390/ijms20184327
[4] FUJUN JIN . A novel quinolinylmethyl substituted ethylenediamine compound exerts anti-cancer effects via stimulating the accumulation of reactive oxygen species and NO in hepatocellular carcinoma cells[J]. European journal of pharmacology, 2020, 885: Article 173497. DOI:10.1016/j.ejphar.2020.173497

Carboxy-ptio Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 97)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65
Shanghai Meishui Chemical Technology Co., Ltd 021-60549325 18616193163 China 4518 56
Shanghai CanSpecsci Instrument Co., Ltd. 400-6087598 15021221957 order@canspecsci.com China 2001 56
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Shanghai Lollane Biological Technology Co.,Ltd. 021-52996696,15000506266 15000506266 China 4860 55
EMMX Biotechnology LLC 888-539-0666 info@emmx.com United States 8435 60

View Latest Price from Carboxy-ptio manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
CARBOXY-PTIO pictures 2021-08-12 CARBOXY-PTIO
148819-94-7
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
  • CARBOXY-PTIO pictures
  • CARBOXY-PTIO
    148819-94-7
  • $10.00-15.00
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd
CARBOXY-PTIO POTASSIUM CARBOXY-PTIO, POTASSIUM SALT 2-(4-CARBOXYPHENYL)-4,4,5,5-TETRAMETHYL-IMIDAZOLINE-1-OXYL-3-OXIDE POTASSIUM 2-(4-CARBOXYPHENYL)-4,4,5,5-TETRAMETHYLIMIDAZOLINE-1-OXYL-3-OXIDE, POTASSIUM SALT 2-(4-CARBOXYPHENYL)-4,5-DIHYDRO-4,4,5,5-TETRAMETHYL-1H-IMIDAZOL-1-YLOXY-3-OXIDE POTASSIUM 2-(4-CARBOXYPHENYL)-4,5-DIHYDRO-4,4,5,5-TETRAMETHYL-1H-IMIDAZOLYL-1-OXY-3-OXIDE, POTASSIUM SALT 2-(4-CARBOXYPHENYL)-4,5-DIHYDRO-4,4,5,5-TETRAMETHYLIMIDAZOLINE-3-OXIDE-1-OXYL, POTASSIUM SALT 2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt, 2-(4-Carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-1H-imidazol-1-yloxy-3-oxide potassium salt Carboxy-PTIO,98% Carboxy-PTIO2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide CARBOXY-PTIO POTASSIUM (2-(4-CARBOXYPHEN YL)-4,4,5,5-TETRAMETHYLIM 2-(4-Carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-1H-imidazol-1-yloxy-3-oxide potassium salt 1H-Imidazol-1-yloxy, 2-(4-carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-, 3-oxide, potassium salt (1:1) 4-(4,4,5,5-tetramethyl-1,3-dioxidoimidazol-1-ium-2-yl)benzoic acid CarboxyPTIO potassium,Carboxy PTIO potassium Carboxy-PTIO (cPTIO) Carboxy-ptio 148819-94-7 C14H16KN2O4 C14H16N2O4K Enzymes, Inhibitors, and Substrates Enzyme Inhibitors by Enzyme Enzyme Inhibitors Nitric Oxide Synthase L to O BioChemical Biochemicals and Reagents Nitric Oxide Reagents