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

3-氧代-2-苯基-4,4,5,5-四甲基咪唑啉-1-氧

Also known as: PTIO, 2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide, 4,5-Dihydro-4,4,5,5-tetramethyl-2-phenyl-1H-imidazol-1-yloxy 1-oxide, 1H-Imidazol-1-yloxy, 4,5-dihydro-4,4,5,5-tetramethyl-2-phenyl-, 3-oxide, 2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl radical

2-Phenyl-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl (CAS 18390-00-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H17N2O2 and a molecular weight of 233.286 g/mol. It is also known as PTIO, 2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide and 4,5-Dihydro-4,4,5,5-tetramethyl-2-phenyl-1H-imidazol-1-yloxy 1-oxide. Key properties include a boiling point of 359.7ºC at 760mmHg, a density of 1.17g/cm3 and a flash point of 171.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

18390-00-6

Jingsj CID

J-16179-4

Molecular Formula

C₁₃H₁₇N₂O₂

Chinese Name

3-氧代-2-苯基-4,4,5,5-四甲基咪唑啉-1-氧

Molecular Weight

233.286 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026