1,1,1-TRIFLUORO-5,5-DIMETHYL-2,4-HEXANEDIONE
Synonym(s):Pivaloyltrifluoroacetone;PTA
- CAS NO.：22767-90-4
- Empirical Formula: C8H11F3O2
- Molecular Weight: 196.17
- MDL number: MFCD00040841
- EINECS: 245-211-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:03
What is 1,1,1-TRIFLUORO-5,5-DIMETHYL-2,4-HEXANEDIONE?
Chemical properties
clear colorless to yellow liquid
The Uses of 1,1,1-TRIFLUORO-5,5-DIMETHYL-2,4-HEXANEDIONE
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.
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.
Properties of 1,1,1-TRIFLUORO-5,5-DIMETHYL-2,4-HEXANEDIONE
| Boiling point: | 138-141 °C (lit.) |
| Density | 1.129 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 105 °F |
| storage temp. | Flammables area |
| pka | 6.78±0.10(Predicted) |
| Specific Gravity | 1.129 |
| color | Clear, colourless |
| BRN | 1708830 |
| CAS DataBase Reference | 22767-90-4(CAS DataBase Reference) |
| EPA Substance Registry System | 2,4-Hexanedione, 1,1,1-trifluoro-5,5-dimethyl- (22767-90-4) |
Safety information for 1,1,1-TRIFLUORO-5,5-DIMETHYL-2,4-HEXANEDIONE
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for 1,1,1-TRIFLUORO-5,5-DIMETHYL-2,4-HEXANEDIONE
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