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Key Documents

P5084

Sigma-Aldrich

PTIO

Synonym(s):

2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide

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About This Item

Empirical Formula (Hill Notation):
C13H17N2O2
CAS Number:
Molecular Weight:
233.29
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.32

form

powder

Quality Level

storage temp.

2-8°C

SMILES string

CC1(C)N([O])C(c2ccccc2)=[N+]([O-])C1(C)C

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

Application

2-phenyl-4, 4, 5, 5,-tetramethylimidazoline-1-oxyl 3-oxide (PTIO) has been used as a nitric oxide (NO) scavenger.

Biochem/physiol Actions

2-phenyl-4, 4, 5, 5,-tetramethylimidazoline-1-oxyl 3-oxide (PTIOs) derivatives react with nitric oxide (NO) to yield the corresponding imino nitroxides (PTIs) and nitrogen dioxide (NO2).
A stable radical scavenger for nitric oxide; affects NO without affecting NO synthase; has significant inhibitory activity against NO biological actions.
Stable radical scavenger for nitric oxide without affecting NO synthase; inhibits NO activity.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Nitric oxide is involved in methyl jasmonate-induced defense responses and secondary metabolism activities of Taxus cells.
Wang JW and Wu JY
Plant & Cell Physiology, 46(6), 923-930 (2005)
Ekaterina Minaeva et al.
PloS one, 12(10), e0186851-e0186851 (2017-10-20)
Truncated hemoglobins constitute a large family, present in bacteria, in archaea and in eukaryotes. However, a majority of physiological functions of these proteins remains to be elucidated. Identification and characterization of a novel role of truncated hemoglobins in the model
Victor Parro et al.
Frontiers in microbiology, 10, 929-929 (2019-05-28)
Potential benthic habitats of early Mars lakes, probably oligotrophic, could range from hydrothermal to cold sediments. Dynamic processes in the water column (such as turbidity or UV penetration) as well as in the benthic bed (temperature gradients, turbation, or sedimentation
Christal G Coleman et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 30(36), 12103-12112 (2010-09-10)
Chronic intermittent hypoxia (CIH) is a concomitant of sleep apnea that produces a slowly developing chemosensory-dependent blood pressure elevation ascribed in part to NMDA receptor-dependent plasticity and reduced nitric oxide (NO) signaling in the carotid body. The hypothalamic paraventricular nucleus
Reactions of PTIO and carboxy-PTIO with *NO, *NO2, and O2-*.
Goldstein S
The Journal of Biological Chemistry, 278 (51), 50949-50955 (2003)

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