4-Carboxy-2,2,6,6-tetramethylpiperidine 1-oxyl

4-羧基-2,2,6,6-四甲基哌啶1-氧基自由基

Also known as: 4-Carboxy-TEMPO, 4-Carboxy-TEMPO free radical, 4-Carboxy-2,2,6,6-tetramethylpiperidine-N-oxyl, 4-Carboxy-2,2,6,6-tetramethylpiperidine 1-oxyl free radical, 4-Carboxy-2,2,6,6-tetramethylpiperidinyloxy, 4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical, 4-Carboxy-2,2,6,6-tetramethylpiperidine1-oxylfreeradical[spinlabel], 4-Carboxy-2,2,6,6-tetramethylpiperidinyloxy, free radical, (4-Carboxy-2,2,6,6-tetramethyl-1-piperidinyl)oxidanyl, (4-Carboxy-2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl, 1-Piperidinyloxy, 4-carboxy-2,2,6,6-tetramethyl-, 1-oxyl-2,2,6,6-tetramethylpiperidin-4-carboxylic acid radical, 1-λ1-oxidanyl-2,2,6,6-tetramethylpiperidine-4-carboxylic acid, 4-COOH-TEMPO, Tempo carboxylate, Tempo carboxylic acid, carboxy-TEMPO, MFCD00134569, RARECHEM AL BO 1387

4-Carboxy-2,2,6,6-tetramethylpiperidine 1-oxyl (CAS 37149-18-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H18NO3 and a molecular weight of 200.255 g/mol. It is also known as 4-Carboxy-TEMPO, 4-Carboxy-TEMPO free radical and 4-Carboxy-2,2,6,6-tetramethylpiperidine-N-oxyl. Key property: a melting point of 185-189ºC(lit.). GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

37149-18-1

Jingsj CID

J-1518440-3

Molecular Formula

C₁₀H₁₈NO₃

Chinese Name

4-羧基-2,2,6,6-四甲基哌啶1-氧基自由基

Molecular Weight

200.255 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026