42983-07-3

Basic information

• Product Name: TRIMETHYL-D9-ACETIC ACID
• Synonyms: TRIMETHYL-D9-ACETIC ACID;2,2-bis(methyl-d3)propanoic-3,3,3-d3 acid
• CAS NO: 42983-07-3
• Molecular Formula: C5HD9O2
• Molecular Weight: 111.19
• Mol File: 42983-07-3.mol
• Article Data: 7

Chemical Properties

• Appearance: /
• CAS DataBase Reference: TRIMETHYL-D9-ACETIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: TRIMETHYL-D9-ACETIC ACID(42983-07-3)
• EPA Substance Registry System: TRIMETHYL-D9-ACETIC ACID(42983-07-3)

Safety Data

• Hazardous Substances Data: 42983-07-3(Hazardous Substances Data)

Upstream product

• 124-38-9 carbon dioxide 
• 918-20-7 tert-butyl chloride-d9 
• 75160-24-6 1,1,1,4,4,4-hexadeuterio-2,3-bis(trideuteriomethyl)-2,3-butanediol 
• 75160-22-4 3,3-dimethyl-2-butanone-d₁₂ 
• 75-98-9 Trimethylacetic acid 

Downstream Products

• 1423119-98-5 N-(3-(5-(2-aminopyrimidin-4-yl)-2-tert-butylthiazol-4-yl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide-d₉ 
• 1423120-07-3 N-(3-(2-tert-butyl-5-(2-chloropyrimidin-4-yl)thiazol-4-yl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide-d₉ 
• 102307-70-0 C₁₂H₇⁽²⁾H₁₁O₃S 
• 5152-54-5 neopentane-d12 

Relevant articles and documents

Effect of ligand deuteration on the decay of Eu3+(5D0) in tris(2,2,6,6-tetramethyl-3,5-heptanedionato)europium(III)

Contributions to the first-order rate constant for the decay of the Eu3+(5D0) state of tris(2,2,6,6-tetramethyl-3,5-heptanedionato)europium(III), Eu(thd)3, from radiative and multiphonon mechanisms are evaluated independently by measuring the luminescence decay rates in undeuterated Eu(thd)3, fully deuterated Eu(thd-d19)3, and α-deuterated Eu(thd-d1)3, which is also designated Eu(α-D,thd)3. In the latter case, deuterium substitution is at the α-carbon, between the carbonyl groups of the β-diketonate ligand. These measurements yield a multiphonon contribution of 332 s-1, of which 157 s-1 is attributed to relaxation via the Cα-H stretching vibration and 175 s-1 to relaxation via the C-H stretching modes of the tert-butyl groups. By use of the measured total Eu3+(5D0) relaxation rate constant and the multiphonon rate constants given above, the Eu3+(5D0) radiative relaxation rate constant is inferred to be 1930 s-1. It is suggested that this unusually high radiative rate constant may be due to an increased allowedness in the 5D0 → 7FJ transitions due to contributions to the predominantly 4f crystal-field wave functions from a low-lying ligand-to-metal charge-transfer state.

Deuterated Benzene Sulfonamide Thiazole Compounds

Deuterated forms of N-{3-[5-(2-Amino-4-pyrimidinyl)-2-(1,1-dimethylethyl)-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide and pharmaceutical compositions containing the same.

Change in reaction pathway induced by deuteration: Thermal decomposition of neopentyl groups on Pt(111) surfaces

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