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2,4-Dichloropyrimidine

CAS No.: 3934-20-1      Formula: C4H2Cl2N2

Weight: 148.97800

Synonyms: 2,4-dichloro-pyrimidine; 2-Chloropyrimidin-4-yl chloride; NSC 37531; 2,4-Dichlorpyrimidin; Pyrimidine, 2,4-dichloro-;


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Description

生产方法: 由尿嘧啶氯化而得。将尿嘧啶、三氯氧磷和二甲苯胺加入反应锅,加热至130℃,回流约45min,稍冷却,放放碎冰中,即析出紫色固体,趁热未溶时过滤,用冰水洗涤,真空干燥,得类紫色粗品,用石油醚(沸程60-90℃)脱色、重结晶,得2,4-二氯嘧啶。 用途: 作为医药中间体。

Basic Information
CAS No.:3934-20-1
Synonyms:2,4-dichloro-pyrimidine; 2-Chloropyrimidin-4-yl chloride; NSC 37531; 2,4-Dichlorpyrimidin; Pyrimidine, 2,4-dichloro-;
Formula:C4H2Cl2N2
Molecular Weight:148.97800
PSA:25.78000
LogP:1.78340
Properties
Appearance & Character:白色固体
Density:1.493 g/cm3 (预测值)
Melting Point:60-61 °C
Boiling Point:101 °C (23 mmHg), 100 °C (19 mmHg)
Flash Point:104.3±5.4 °C (预测值)
Storage Conditions:-20ºC
Safety Info
Signal Word:Warning
Customs Code:2933599090
WGK Germany:3
Hazard Category Code:R36/37/38
Security Instructions:S26-S36-S28A
Dangerous Goods Sign:Xi
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