4-amino -3, 5-dichloropyridine, 22889-78-7

Chemical Encyclopedia

January 16, 2026

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Chinese name:4-amino -3, 5-dichloropyridine
english name:4-Amino-3,5-dichloropyridine
chinese alias: roflumilast impurity C; 3,5-dichloro-4-aminopyridine; 3,5-dichloro-4-aminopyridine; roflumilast-imE; 3,5-dichloropyridine -4-amine; roflumilast intermediate 4
english alias: aminodichloropyridine;3,5-dichloro-4-aminopyridine;3,5-dichloro-pyridin-4-ylamine;3,5-dichloro-4-pyridinamine;3,5-Dichloropyridin-4-amine;
CAS No:22889-78-7
chemical formula: C5H4Cl2N2
molecular weight:163.00
melting point:159 ℃
boiling point:250.8°C at 760 mmHg
flash Point:105.5°C
vapor pressure: 0.0212mmHgat25°C
Hazard Category Code: R36/37/38 Irritating to eyes, respiratory tract and skin.
Dangerous Goods Signs: xi: Irritant substance
safety instructions: s26: In case of contact with eyes, immediately rinse with plenty of water and send to a doctor for treatment. S36: Wear suitable protective clothing.