다이티오-2,2'-비스피리딘-다이옥사이드 1,1'

다이티오-2,2'-비스피리딘-다이옥사이드 1,1' 속성

다이티오-2,2'-비스피리딘-다이옥사이드 1,1' C화학적 특성, 용도, 생산

개요

Bispyrithione is a pyrithione derivate used as bactericide and fungicide. The drug was marketed under the name Crimanex in the form of shampoo for the treatment of dandruff, however it is no longer available on the manufacturer website (Drossa Pharm . It is currently used as a pesticide.

화학적 성질

beige to slightly grey powder and chunks

용도

Bispyrithione can be used as an antibacterial; antifungal.

주요 응용

Bispyrithione is a new antidandruff agent behind zinc pyrithione. It has similar chemical structure to zinc pyrithione, thus performs the same bactericidal property, with unique bactericidal actions, especially to mycetes, mild fungus and microzymes. It also can effectively disinfect oval bacil, candia albicans and other mycetes, while normal antimicrobials can't. It is not sensitive to metal ion and dissolves in water more easily than zinc pyrithione, which improves the compatibility and leads to best bactericidal effect. In 2-in-1 shampoo, it doesn't affect the pearly effect but enhance color stability.

정의

ChEBI: Dipyrithione is a pyridinium ion.

Synthesis

1, drop into successively the 600g2-chloropyridine in the 5000ml four-hole boiling flask, 100g maleic and acid anhydrides, 600g hydrogen peroxide (35%) are opened to stir and are warmed up to 60 ℃ of successive reactions 12 hours, make 2-chloropyridine-N-oxide water solution.
2, the 2-chloropyridine that uses the 4000g2-methyl chloride to divide four extractions to make-N-oxide water solution merges extraction phase, and condensing crystal makes sterling 2-chloropyridine-N-oxide compound.
3, the 2-chloropyridine that purification is obtained-N-oxide compound, 430g sodium sulphite, the 2000g high purity water, drop into successively in the 5000ml four-hole boiling flask, open and stir, be warming up to 70 ℃, along with the carrying out of reaction added a part of yellow soda ash in good time, the PH of adjustment system is stabilized in 9～10, and reaction finishes 70 ℃ of insulations 2 hours, and insulation finishes to cool.Make the pyrithione sodium water solution.
4, use an amount of dilute sulphuric acid to adjust the PH to 2 of pyrithione sodium water solution system, separate out a large amount of white crystals.Filtrated stock cleans solid, namely gets pyrithione.
5, the pyrithione that the reaction of upper step is obtained, the 1000g ultrapure water drops in the plastic cup, the unlatching dispersed with stirring is even, then slowly splash into 220g hydrogen peroxide (35%), reaction is 1 hour about 50 ℃, make finished product Bispyrithione 497g (99.72%, five step of content overall yield of reaction: 74.6%).

다이티오-2,2'-비스피리딘-다이옥사이드 1,1' 준비 용품 및 원자재

원자재

준비 용품

다이티오-2,2'-비스피리딘-다이옥사이드 1,1' 공급 업체

공급자	전화	이메일	국가	제품 수	이점
WUXI HONOR SHINE CHEMICAL CO.,LTD	0510-83593312 +8613665125081	sales@honorshinechem.com	China	61	58
Wuhan ShuEr Biology Technology Co.,Ltd	+86-15629032529	excellentsuppliers@shuerbio.com	China	897	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971 +86-17331933971	deasea125996@gmail.com	China	2503	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21695	55
Shenzhen Nexconn Pharmatechs Ltd	+86-755-89396905 +86-15013857715	admin@nexconn.com	China	10248	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Shandong chuangyingchemical Co., Ltd.	18853181302	sale@chuangyingchem.com	CHINA	5909	58
Hebei shuoxi biotechnology co. LTD	+8613081092107		CHINA	968	58
Hebei Binshare New Material Co. Ltd	+8618633865755	china01@hbbinshare.com	CHINA	969	58
Hefei TNJ Chemical Industry Co.,Ltd.	0551-65418671	sales@tnjchem.com	China	34572	58

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