2,4-Dichloropyrimidine-3934-20-1-C4H2Cl2N2 -Chemindustry.com - The leading vertical market advertising source for the chemical world

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