-
Name
4-Amino-2,3,5,6-tetrafluoropyridine
- EINECS
- CAS No. 1682-20-8
- Article Data4
- CAS DataBase
- Density 1.631g/cm3
- Solubility
-
Melting Point
85-87 °C(lit.)
- Formula C5H2F4N2
- Boiling Point 208.3°Cat760mmHg
- Molecular Weight 166.078
- Flash Point 79.8°C
- Transport Information
- Appearance white to light yellow crystal
-
Safety
Hazard Codes Xn,Xi Risk Statements 20/21/22-36/37/38 Safety Statements 26-36 WGK Germany 3 Hazard Note Irritant - Risk Codes R20/21/22;R36/37/38
-
Molecular Structure
-
Hazard Symbols
- Synonyms 2,3,5,6-tetrafluoropyridin-4-amine;2,3,5,6-tetrafluoro-pyridin-4-ylamine;
- PSA 38.91000
- LogP 1.80140
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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