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Cas Database |
| Name |
4-Amino-2,3,5,6-tetrafluoropyridine |
EINECS | N/A | ||||||||||
| CAS No. | 1682-20-8 | Density | 1.631g/cm3 | ||||||||||
| PSA | 38.91000 | LogP | 1.80140 | ||||||||||
| Solubility | N/A | Melting Point |
85-87 °C(lit.) |
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| Formula | C5H2F4N2 | Boiling Point | 208.3°Cat760mmHg | ||||||||||
| Molecular Weight | 166.078 | Flash Point | 79.8°C | ||||||||||
| Transport Information | N/A | Appearance | white to light yellow crystal | ||||||||||
| Safety |
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Risk Codes | R20/21/22;R36/37/38 | ||||||||||
| Molecular Structure |
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Hazard Symbols |
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| Synonyms |
2,3,5,6-tetrafluoropyridin-4-amine;2,3,5,6-tetrafluoro-pyridin-4-ylamine; |
Article Data | 4 |
4-Amino-2,3,5,6-tetrafluoropyridine Specification
The 4-Amino-2,3,5,6-tetrafluoropyridine with cas registry number of 1682-20-8, belongs to the following product categories: (1)Pyridine; (2)Heterocyclic Compounds; (3)Fluoropyridines; (4)Halopyridines; (5)C5; (6)Heterocyclic Building Blocks; (7)Pyridines. Its chemical properties is white to light yellow crystal. And it is also called 2,3,5,6-tetrafluoro-pyridin-4-ylamine.
Preparation: this chemical can be prepared by pentafluoro-pyridine. This reaction will need reagent NH3 and solvent dioxane, H2O at temperature of 25 ℃.
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Uses of 4-Amino-2,3,5,6-tetrafluoropyridine: it can be used to produce 1-(2,3,5,6-tetrafluoro-pyridin-4-ylazo)-naphthalen-2-ol with naphthalen-2-ol. The reaction time is 3 hour(s) with reaction temperature of 0 ℃. The yield is about 69%.
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When you are using this chemical, please be cautious about it as the following:
The 4-Amino-2,3,5,6-tetrafluoropyridine irritates to eyes, respiratory system and skin. When use it, wear suitable protective clothing, gloves and eye/face protection. If contact with eyes, rinse immediately with plenty of water and seek medical advice.
Besides this, 4-Amino-2,3,5,6-tetrafluoropyridine is also harmful by inhalation and if swallowed.
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