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2-Amino-5-nitropyridine

CAS No.: 4214-76-0      Formula: C5H5N3O2

Weight: 139.11200

Synonyms: 5-nitro-2-pyridinamine; 5-nitro-2-pyridinamin; 5-NITRO-2-AMINOPYRIDINE; 2-Amino-5-Nitropyridine; 5-NITRO-PYRIDIN-2-YLAMINE;


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Description

生产方法: 由2-氨基吡啶硝化而得。在温度50℃下,将2-氨基吡啶加到浓硫酸中,再滴加发烟硝酸,温度不超过50℃。45℃保温2h,室温条件下搅拌4h。反应液倾入碎冰中,5℃以下加氨水调节至pH6,析出晶体。过滤,干燥。用水重结晶,得淡黄色片晶,收率75% 用途: 医药中间体。

Basic Information
CAS No.:
4214-76-0
Synonyms:
5-nitro-2-pyridinamine; 5-nitro-2-pyridinamin; 5-NITRO-2-AMINOPYRIDINE; 2-Amino-5-Nitropyridine; 5-NITRO-PYRIDIN-2-YLAMINE;
Formula:
C5H5N3O2
Molecular Weight:
139.11200
PSA:
84.73000
LogP:
1.67640
Properties
Appearance & Character:
黄色细结晶粉末
Density:
1.437
Melting Point:
186-188 °C(lit.)
Boiling Point:
351.3ºC at 760 mmHg
Flash Point:
Storage Conditions:
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Safety Info
Customs Code:
29333999
WGK Germany:
3
Hazard Category Code:
R36/37/38
Security Instructions:
S26-S37/39-S24/25
Dangerous Goods Sign:
Xi