| Identification | More | [Name]
TETRAFLUOROHYDROQUINONE | [CAS]
771-63-1 | [Synonyms]
1,2,4,5-TETRAFLUORO-3,6-DIHYDROXYBENZENE
1,4-DIHYDROXYTETRAFLUOROBENZENE
2,3,5,6-TETRAFLUOROBENZENE-1,4-DIOL
2,3,5,6-TETRAFLUOROHYDROQUINONE
TETRAFLUORO-1,4-HYDROQUINONE
TETRAFLUOROBENZENE-1,4-DIOL
TETRAFLUOROHYDROQUINONE
1,4-Benzenediol, 2,3,5,6-tetrafluoro-
2,3,5,6-Tetrafluoro-1,4-benzenediol
Hydroquinone, tetrafluoro-
1,4-Dihydroxy-2,3,5,6-tetrafluorobenzene
1,4-Dihydroxy-2,3,5,6-tetrafluorobenzene 98%
1,4-Dihydroxy-2,3,5,6-tetrafluorobenzene98% | [EINECS(EC#)]
212-237-9 | [Molecular Formula]
C6H2F4O2 | [MDL Number]
MFCD00002340 | [Molecular Weight]
182.07 | [MOL File]
771-63-1.mol |
| Chemical Properties | Back Directory | [Appearance]
SLIGHTLY BEIGE CRYSTALLINE POWDER | [Melting point ]
172-174 °C(lit.)
| [Boiling point ]
206℃ | [density ]
1.765 | [Fp ]
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 Data | Back Directory | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R22:Harmful if swallowed.
R41:Risk of serious damage to eyes. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [HazardClass ]
IRRITANT | [HS Code ]
29081990 |
| Hazard Information | Back Directory | [Chemical Properties]
SLIGHTLY BEIGE CRYSTALLINE POWDER | [Uses]
Tetrafluorohydroquinone is a kind of medicine, chemistry of pesticide intermediate, has in fields such as medicine, agricultural chemicals very to use widely. | [Synthesis]
| [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 |
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