ChemicalBook--->CAS DataBase List--->57041-67-5

57041-67-5

57041-67-5 Structure

57041-67-5 Structure
IdentificationMore
[Name]

DIFLUOROMETHYL 1,2,2,2-TETRAFLUOROETHYL ETHER
[CAS]

57041-67-5
[Synonyms]

1,2,2,2-TETRAFLUOROETHYL DIFLUOROMETHYL ETHER
DESFLURANE
DIFLUOROMETHYL 1,2,2,2-TETRAFLUOROETHYL ETHER
i653
Difluoromethyl 1,2,2,2-tetrafluoroethyl ether 99%
Difluoromethyl1,2,2,2-tetrafluoroethylether99%
Desfluran
2-(Difluoromethoxy)-1,1,1,2-tetrafluoroethane
Suprane
1,1,1,2-Tetrafluoro-2-(difluoromethoxy)ethane
[Molecular Formula]

C3H2F6O
[MDL Number]

MFCD00236716
[Molecular Weight]

168.04
[MOL File]

57041-67-5.mol
Chemical PropertiesBack Directory
[Appearance]

Clear, colourless, mobile, heavy liquid.
[Boiling point ]

23-24°C
[density ]

1,47 g/cm3
[refractive index ]

1.3577 (estimate)
[solubility ]

Practically insoluble in water, miscible with anhydrous ethanol.
[form ]

liquid
[color ]

Clear
[CAS DataBase Reference]

57041-67-5(CAS DataBase Reference)
[EPA Substance Registry System]

Ethane, 2-(difluoromethoxy)-1,1,1,2-tetrafluoro-, (+-)- (57041-67-5)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Safety Statements ]

S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
[Hazard Note ]

Irritant
[HazardClass ]

GAS
[HS Code ]

2909191800
[Hazardous Substances Data]

57041-67-5(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Isoflurane-->Desflurane-->Ethane, 2-(dichloromethoxy)-1,1,1,2-tetrafluoro--->BROMINE TRIFLUORIDE
[Preparation Products]

Ethane, pentafluoro(trifluoromethoxy)--->2-Chloro-1,1,1,2-tetrafluoroethane
Hazard InformationBack Directory
[Description]

Desflurane is a new inhalation anesthetic introduced for induction and maintenance of general anesthesia in adults. Due to reports of respiratory irritation, desflurane may be used only for maintenance in children. Although almost structurally identical to isoflurane, a halogen replacement gives desflurane an improved pharmacokinetic profile. It is less soluble in blood and tissue and produces a fast onset of action and a more rapid recovery from anesthesia.
[Chemical Properties]

Clear, colourless, mobile, heavy liquid.
[Originator]

Anaquest (BOC Healthcare) (U.S.A.)
[History]

Desflurane was first synthesized by Russel et al U.S. at the 29. of July 1975. The synthesis was started by using floural methyl hemiacetal (CF3CH(OH)OCH3) and converting it to 1,2,2,2- tetraflouroethyl methyl ether (CF3CHFOCH3). Next step was chlorinating two hydrogen atoms of the methyl-group to CF3CHFOCHCl2. This next to last molecule was charged with HF in the presence of antimony pentachloride (SBCL5) to Desflurane. But this way of synthesizing Desfluran was not usable for industrial synthesis, because of the less yield of Desflurane and the expensive educts.
[Uses]

Anesthetic.
[Definition]

ChEBI: Desflurane is an organofluorine compound. It has a role as an inhalation anaesthetic. It is functionally related to a methoxyethane.
[Preparation]

Isoflurane and bromine trifluoride were reacted overnight at room temperature to synthesize desflurane in 62% yield.
[Brand name]

Suprane (Baxter Healthcare).
[Biological Functions]

Desflurane (Suprane) shares most of the pharmacological properties of isoflurane. Desflurane has low tissue and blood solubility compared with other halogenated hydrocarbons, and its anesthetic partial pressure is thus established more rapidly. Recovery is similarly prompt when the patient is switched to room air or oxygen. Desflurane’s popularity for outpatient procedures stems from its rapid onset and prompt elimination from the body by exhalation. A disadvantage is that desflurane irritates the respiratory tract; thus, it is not preferred for induction of anesthesia using an inhalational technique. However, desflurane may be used to maintain anesthesia after induction with an alternative IV or inhalational agent, preserving the advantage of rapid recovery.
Desflurane, like other halogenated hydrocarbon anesthetics, causes a decrease in blood pressure.The reduced pressure occurs primarily as a consequence of decreased vascular resistance, and since cardiac output is well maintained, tissue perfusion is preserved.
Desflurane stimulates the sympathetic nervous system and causes abrupt transient tachycardia during induction or as the concentration of the agent is raised to meet the patient’s changing needs.
Desflurane causes an increase in the rate of ventilation, a decrease in tidal volume, and a decrease in minute volume as inspired concentrations only slightly exceed 1 MAC. Thus should anesthesiologists require desflurane to be administered near or above MAC levels, patients are likely to have marked reductions in PCO2.
[General Description]

Desflurane is a nonflammable, colorless, very volatile liquidpackaged in amber-colored vials. The boiling point is22.8°C, and it requires a vaporizer specifically designed fordesflurane. The manufacturer states that the vials can bestored at room temperature. Desflurane has a blood:gas partitioncoefficient of 0.42, an MAC of 7.3% and an oil:gaspartition coefficient of 18.7. The low blood:gas partition coefficientleads to fast induction times and short recoverytimes. Desflurane is not recommended for induction anesthesiain children because of the high incidence of laryngospasms(50%), coughing (72%), breath holding (68%),and increase in secretions (21%). Desflurane can producea dose-dependent decrease in blood pressure and concentrationsexceeding 1 MAC may cause transient increases inheart rate. Desflurane can react with desiccated carbon dioxideabsorbents to produce carbon monoxide that may resultin elevated levels of carboxyhemoglobin.24.
[Clinical Use]

Desflurane is metabolized minimally with less than0.02% of the administered dose recovered as urinary metabolites.Desflurane produces minimal free fluoride ion and verylittle trifluoroacetic acid and has not been reported to causeeither kidney or liver damage.
[Metabolism]

Desflurane is not metabolized to any great extent and, therefore, has not been associated with hepatotoxicity or nephrotoxicity. Metabolites, mostly trifluoroacetate, account for less than 0.02% of the administered dose. Whereas desflurane can react with soda lime or Baralyme to form carbon monoxide, no reports of adverse outcomes in patients have appeared.
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