63467-53-8

Basic information

• Product Name: 2,2,6,6-TETRAMETHYLPIPERIDONE-4 OXIME HYDROCHLORIDE
• Synonyms: 2,2,6,6-TETRAMETHYLPIPERIDONE-4 OXIME HYDROCHLORIDE;TEMPOXIME;TMP=NOH;2,2,6,6-tetramethylpiperidin-4-one oxime hydrochloride
• CAS NO: 63467-53-8
• Molecular Formula: C9H17N2O2 *
• Molecular Weight: 185.24
• Mol File: 63467-53-8.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 253.1°C at 760 mmHg
• Flash Point: 106.9°C
• Appearance: /
• Vapor Pressure: 0.00579mmHg at 25°C
• CAS DataBase Reference: 2,2,6,6-TETRAMETHYLPIPERIDONE-4 OXIME HYDROCHLORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,6,6-TETRAMETHYLPIPERIDONE-4 OXIME HYDROCHLORIDE(63467-53-8)
• EPA Substance Registry System: 2,2,6,6-TETRAMETHYLPIPERIDONE-4 OXIME HYDROCHLORIDE(63467-53-8)

Safety Data

• Hazard Codes: Xn
• Statements: 22
• Safety Statements: 36
• WGK Germany: 3
• Hazardous Substances Data: 63467-53-8(Hazardous Substances Data)

Usage

Uses

Tempoxime Hydrochloride is a reagent used for the synthesis of 5-Homopiperazinones.

InChI:InChI=1/C9H18N2O.ClH/c1-8(2)5-7(10-12)6-9(3,4)11-8;/h11-12H,5-6H2,1-4H3;1H

Upstream product

• 826-36-8 2,2,6,6-Tetramethyl-4-piperidone 

Relevant articles and documents

Application of 4-hydroxy-, 4-Oxo-, and 4-hydroxyimino derivatives of stable 2,2,6,6-tetramethylpiperidine N-oxyl radical for the measurements of lewis acidity of solvents

UV-VIS spectra of 2,2,6,6-tetramethylpiperidine N-oxyl (TMPNO) stable radical measured in 18 solvents were compared with the spectra of its derivatives functionalized in the 4 position (4-hydroxy-(h-TMPNO), 4-oxo-(o-TMPNO) and 4-hydroxyimino-(i-TMPNO)). The results obtained proved, that the λmax values corresponding to the n → π* transition in the N-O? chromophore are for all TMPNO derivatives intercorrelated, and they also correlate very well with other acidity parameters (Z, E"T" and AN). Thus, all these compounds could be used as standard bases for determination of the experimental acidity of solvents. Detailed analysis of the spectral characteristics of all compounds leads to the conclusion, that the molar absorptivities (ε) of TMPNO and h-TMPNO corresponding to the n → π* transition are of the order of 10 dm3 mol-1 cm-1, whereas those of the o-TMPNO and i-TMPNO are two times lower. In the case of the π → π* transition we observed an opposite behaviour - the molar absorptivities (ε) of TMPNO and h-TMPNO are close to 2×103 dm3 mol-1 cm-1, whereas those of the oxo and hydroxyimino derivatives are equal to ～4.4×103 dm3 mol-1 cm-1. The integral intensities of both bands behave accordingly. These differences were attributed to the formation of the head-to-tail dimers, in which the N-O? chromophore interacts with the exocyclic double bond in the 4-position of the piperidine.