4-Oxo-2,2,6,6-tetramethylpiperidinooxy

4-氧代-2,2,6,6-四甲基哌啶-1-氧自由基

Also known as: 4-Oxo-TEMPO, TEMPONE, 2,2,6,6-Tetramethyl-4-piperidone 1-oxyl, 4-Oxo-2,2,6,6-tetramethylpiperidine 1-oxyl free radical, 4-Oxo-2,2,6,6-tetramethyl-1-piperidinyloxy, Tanone radical, Triacetoneamine N-oxyl, 4-Oxo-2,2,6,6-tetramethylpiperidin-1-oxyl

4-Oxo-2,2,6,6-tetramethylpiperidinooxy (CAS 2896-70-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H16NO2 and a molecular weight of 170.229 g/mol. It is also known as 4-Oxo-TEMPO, TEMPONE and 2,2,6,6-Tetramethyl-4-piperidone 1-oxyl. Key properties include a melting point of 33-38 °C, a boiling point of 257.5ºC at 760mmHg, a density of 1.02g/cm3 and a flash point of 109.5ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2896-70-0

Jingsj CID

J-5365-9

Molecular Formula

C₉H₁₆NO₂

Chinese Name

4-氧代-2,2,6,6-四甲基哌啶-1-氧自由基

Molecular Weight

170.229 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026