PTIO (=2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) [Stable free radical reagent for the simultaneous determination of NO and NO2 in the atmosphere]

Name: PTIO (=2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) [Stable free radical reagent for the simultaneous determination of NO and NO2 in the atmosphere]
SKU: ACM18390006-2
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Catalog NumberACM18390006-2

CAS Number18390-00-6

CategoryOrganic Radicals; Battery Materials; Electronic Materials

PTIO (=2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl) [Stable free radical reagent for the simultaneous determination of NO and NO2 in the atmosphere]

Synonyms

4,5-Dihydro-4,4,5,5-tetramethyl-2-phenyl-1H-imidazol-1-yloxy-1-oxide

Molecular Weight

233.29

Molecular Formula

C13H17N2O2

Canonical SMILES

CC1(C([N+](=C(N1[O])C2=CC=CC=C2)[O-])(C)C)C

InChI

InChI=1S/C13H17N2O2/c1-12(2)13(3,4)15(17)11(14(12)16)10-8-6-5-7-9-10/h5-9H,1-4H3

InChI Key

DYUUGILMVYJEHY-UHFFFAOYSA-N

Purity

>98.0%(T)

Appearance

Blue to Dark blue powder to crystal

Application

PTIO, a stable free radical reagent, serves the purpose of enabling the simultaneous determination of nitrogen monoxide (NO) and nitrogen dioxide (NO2) in the atmosphere. This compound, characterized by its blue crystalline form, functions effectively as a nitric oxide scavenger. By undergoing a reaction with nitric oxide, PTIO transforms it into nitrogen dioxide and corresponding imino nitroxides. Through these reactions, PTIO is essential in assays that measure nitric oxide production, particularly in studies evaluating the inhibitory activity of nitric oxide synthase.

Complexity

316

Covalently-Bonded Unit Count

Exact Mass

233.129003g/mol

Formal Charge

Heavy Atom Count

MDL Number

MFCD00059929

MeSH Entry Terms

2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide;PTIO

Monoisotopic Mass