Tetrafluorohydroquinone
Synonym(s):2,3,5,6-Tetrafluorobenzene-1,4-diol;2,3,5,6-Tetrafluorohydroquinone;Tetrafluoro-1,4-dihydroquinone
- CAS NO.：771-63-1
- Empirical Formula: C6H2F4O2
- Molecular Weight: 182.07
- MDL number: MFCD00002340
- EINECS: 212-237-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-04-28 16:56:32
What is Tetrafluorohydroquinone?
Chemical properties
SLIGHTLY BEIGE CRYSTALLINE POWDER
The Uses of Tetrafluorohydroquinone
Tetrafluorohydroquinone is a kind of medicine, chemistry of pesticide intermediate, has in fields such as medicine, agricultural chemicals very to use widely.
Synthesis
The diazoides of 2,3,5, 6-tetrafluoro-4-aminophenol is added to the mixture of water, CuSO4.5H20 at 90-110℃ within 1-2 hours and the return water is heated, stratification, oil layer extraction with lye that is a sodium hydroxide solution or potassium hydroxide with a weight concentration of 5-10%, and then collected the extracted lye layer and acidified with hydrochloric acid to obtain the target product 2,3,5, 6-tetrafluorohydroquinone.
storage
Store under inert gas
Properties of Tetrafluorohydroquinone
| Melting point: | 172-174 °C(lit.) |
| Boiling point: | 206℃ |
| Density | 1.765 |
| Flash point: | 78℃ |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | 5.90±0.33(Predicted) |
| color | White to Light yellow to Light orange |
| CAS DataBase Reference | 771-63-1(CAS DataBase Reference) |
Safety information for Tetrafluorohydroquinone
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Tetrafluorohydroquinone
New Products
4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID HCL 4-(Dimethylamino)tetrahydro-2H-pyran-4-carbonitrile 4-Aminotetrahydropyran-4-carbonitrile Hydrochloride (R)-3-Aminobutanenitrile Hydrochloride 3-((Dimethylamino)methyl)-5-methylhexan-2-one oxalate 1,4-Dioxa-8-azaspiro[4.5]decane 5-Bromo-2-nitropyridine Nimesulide BP Aceclofenac IP/BP/EP Diclofenac Sodium IP/BP/EP/USP Mefenamic Acid IP/BP/EP/USP Ornidazole IP Diclofenac Potassium THOMAIND PAPER PH 2.0 TO 4.5 1 BOX BUFFER CAPSULE PH 9.2 - 10 CAP SODIUM CHLORIDE 0.1N CVS ALLOXAN MONOHYDRATE 98% PLATINUM 0.5% ON 3 MM ALUMINA PELLETS (TYPE 73) LITHIUM AAS SOLUTION 2-Bromo-1-(bromomethyl)-3-chloro-5-nitrobenzene 2-Bromo-3-nitroaniline N-(3-Hydroxypropyl)-N-methylacetamide 3-Bromo-6-chloropyridazine 4-ethyl-3-nitrobenzoic acidRelated products of tetrahydrofuran
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