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劳森试剂

劳森试剂用途

Lawesson's reagent is a thiation agent.

劳森试剂名称

[ CAS 号 ]:
19172-47-5

[ 中文名 ]:
劳森试剂

[ 英文名 ]:
2,4-Bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4-disulfide

[中文别名 ]:

[英文别名 ]:

AURORA KA-1707
Lawesson's Reagent
Lawesson's
EINECS 242-855-4
MFCD00005171
Lawesson‘s
Lawesson`s reagentsulfide dimer
Lawesson Reagent
4-Methoxyphenylthionophosphine sulfide dimer

劳森试剂物理化学性质

[ 密度 ]:
1.5±0.1 g/cm3

[ 沸点 ]:
525.8±60.0 °C at 760 mmHg

[ 熔点 ]:
228-230 °C(lit.)

[ 分子式 ]:
C₁₄H₁₄O₂P₂S₄

[ 分子量 ]:
404.467

[ 闪点 ]:
271.8±32.9 °C

[ 精确质量 ]:
403.935181

[ PSA ]:
152.86000

[ LogP ]:
6.05480

[ 外观性状 ]:
淡黄色至米色粉末

[ 蒸汽压 ]:
0.0±1.3 mmHg at 25°C

[ 折射率 ]:
1.706

[ 储存条件 ]:
water-free area

[ 水溶解性 ]:
分解

劳森试剂MSDS

详细MSDS(安全技术说明书)

劳森试剂安全信息

[ 符号 ]:

GHS02

[ 信号词 ]:
Danger

[ 危害声明 ]:
H261

[ 补充危害声明 ]:
Contact with water liberates toxic gas.

[ 警示性声明 ]:
P231 + P232-P422

[ 危害码 (欧洲) ]:
F:Flammable;Xn:Harmful;

[ 风险声明 (欧洲) ]:
R15/29;R20/21/22

[ 安全声明 (欧洲) ]:
S8-S43-S36/37-S22

[ 危险品运输编码 ]:
3278

[ WGK德国 ]:
3

[ 包装等级 ]:
III

[ 危险类别 ]:
4.3

[ 海关编码 ]:
2930909090

劳森试剂上下游产品

劳森试剂上游产品

劳森试剂下游产品

劳森试剂制备

1.在通风橱中和干燥条件下，将108克(1摩尔)苯甲醚与44.4克(0.1摩尔)五硫化二磷二聚休(P4O10)一起加热至回流，当温度达145℃时，即开始放出硫化氢。将温度逐渐升到150℃并保持1.5小时，使多硫化磷完全溶解，并形成清亮的淡桔黄色挤液。稍后，即有淡黄色沉淀析出。最后将温度升至155-160℃使回流约6小时，摹本上不再有硫化氢逸出后，冷却反应混合物，比广:物结晶成块。用苯洗涤，真空中加热干燥，得产率80%。

2.实验室可以按照标准的实验操作步骤从苯甲醚和P₄O₁₀为原料来制备。

劳森试剂海关

[ 海关编码 ]: 2930909090

[ 中文概述 ]:
2930909090. 其他有机硫化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

劳森试剂文献

One-Pot Approach to Organo-Phosphorus-Chalcogen Macrocycles Incorporating Double OP(S)SCn or OP(Se)SeCn Scaffolds: A Synthetic and Structural Study.

Chemistry 22 , 7782-91, (2016)

The development of new methodology for the preparation of functional macrocycles with practical applications is an important research area in macromolecular science. In this study, we report a new one...

Subnormothermic machine perfusion for ex vivo preservation and recovery of the human liver for transplantation.

Am. J. Transplant. 14(6) , 1400-9, (2014)

To reduce widespread shortages, attempts are made to use more marginal livers for transplantation. Many of these grafts are discarded for fear of inferior survival rates or biliary complications. Rece...

Hydrogen sulfide enhances ulcer healing in rats.

FASEB J. 21 , 4070-4076, (2007)

Hydrogen sulfide is an endogenous mediator that relaxes vascular smooth muscle, exhibits several antiinflammatory activities, and contributes to gastric mucosal defense. This study was performed to ex...

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