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469548

Sigma-Aldrich

1,1,1-Trifluoro-5,5-dimethyl-2,4-hexanedione

98%

Synonym(s):

PTA, Pivaloyltrifluoroacetone

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About This Item

Linear Formula:
(CH3)3CCOCH2COCF3
CAS Number:
Molecular Weight:
196.17
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

refractive index

n20/D 1.407 (lit.)

bp

138-141 °C (lit.)

density

1.129 g/mL at 25 °C (lit.)

functional group

fluoro
ketone

SMILES string

CC(C)(C)C(=O)CC(=O)C(F)(F)F

InChI

1S/C8H11F3O2/c1-7(2,3)5(12)4-6(13)8(9,10)11/h4H2,1-3H3

InChI key

BVPKYBMUQDZTJH-UHFFFAOYSA-N

Gene Information

mouse ... Mtap(66902)

General description

1,1,1-Trifluoro-5,5-dimethyl-2,4-hexanedione (TFDMHD) is a 1,3-diketone. It forms Er(3+) complexes. These complexes shows thermally activated slow relaxation of magnetization under a zero direct-current (DC) field.

Application

1,1,1-Trifluoro-5,5-dimethyl-2,4-hexanedione (TFDMHD) may be used in the synthesis of series of NNO ketoimines bearing trifluoromethyl substituents, via Schiff base condensation. It may be used in the synthesis of octahedral Werner-type cobalt(II) complexes. It was used in the preparation of D2-TFDMHD, by mixing with D2O.

Pictograms

Flame

Signal Word

Warning

Hazard Statements

Hazard Classifications

Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

105.8 °F - closed cup

Flash Point(C)

41 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Conformation, molecular structure, and intramolecular hydrogen bonding of 1, 1, 1-trifluoro-5, 5-dimethyl-2, 4-hexanedione.
Vakili M, et al.
Journal of Molecular Structure, 1021, 102-111 (2012)
Anne Baker et al.
Clinical rehabilitation, 31(1), 45-60 (2016-03-25)
To identify factors reported with negative and positive outcomes for caregivers of the traumatic brain injury and spinal cord injury cohorts, to investigate what interventions have been studied to support carers and to report what effectiveness has been found. Scoping
M Ramos Silva et al.
Dalton transactions (Cambridge, England : 2003), 44(3), 1264-1272 (2014-11-22)
The magnetic properties of two similar Er(3+) complexes have been investigated. [Er(tpm)3(bipy)] (Htpm = 1,1,1-trifluoro-5,5-dimethyl-2,4-hexanedione and bipy = 2,2'-bipyridine) displays thermally activated slow relaxation of magnetisation under a zero direct-current (DC) field. Under an applied HDC field of 1000 G
Anette Lohmander et al.
Journal of plastic surgery and hand surgery, 51(1), 27-37 (2017-02-22)
Adequate velopharyngeal function and speech are main goals in the treatment of cleft palate. The objective was to investigate if there were differences in velopharyngeal competency (VPC) and hypernasality at age 5 years in children with unilateral cleft lip and
Jonas Ellegaard Nielsen et al.
Biomedicines, 8(7) (2020-07-11)
Easily accessible biomarkers for Alzheimer's dementia (AD) are lacking and established clinical markers are limited in applicability. Blood is a common biofluid for biomarker discoveries, and extracellular vesicles (EVs) may provide a matrix for exploring AD related biomarkers. Thus, we

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