甲

44,4′-二氟二苯甲酮  

中文名称:4,4′-二氟二苯甲酮　　英文名称:4,4′-Difluoro diphenylmethanone 

分 子 式:C13H8F2O 　　CAS NO:345-92-6 　　结 构 式:如右图　　分子量:218.2 　　外 观:白色至类白色结晶性粉末　 　　含 量:99.0%熔 点:106-109 　　沸点:137 　　闪点:118.4 　　干燥失重:0.5% 　　主要用途:可作光记录及电记录材料的成像剂和电荷控制剂，还可作某些聚合反应的引发剂，是许多共聚物 的单体材料。 　　危害性概述:刺激眼睛、呼吸系统和皮肤

4,4 -Difluoro diphenylmethanone

CAS NO:345-92-6

structure type: such as the molecular weight: 218.2 appearance:white or almost white crystalline powder content: 99% melting point: 106-109boiling point: 137 flash point: 118.4 drying: 0.5% main uses : can be used foroptical recording and electrical recording material imaging agent and a chargecontrol agent, also can make some polymerization initiator, is a lot of copolymermonomer material. Harmfulness of overview: irritating to eyes, respiratorysystem and skin

thesis. Its mechanism ofaction is through inhibition of thyroid peroxidase, prevent the intake to thethyroid iodide oxidation and tyrosine coupling, thereby impeding thyroxine ( T4three ) and triiodothyronine ( T3 ) synthesis. This product did not blockstorage thyroid hormone release, so only when the body has been eliminated andcirculating thyroid hormone concentrations decreased after, appeared obviousclinical effect. In addition, propylthiouracil also inhibits peripheral tissuein T4 iodothyronine T3 generation