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2(3H)-Thiazolone, 5-chloro-4-[(4-methylphenyl)sulfonyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

557084-20-5

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557084-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 557084-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,0,8 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 557084-20:
(8*5)+(7*5)+(6*7)+(5*0)+(4*8)+(3*4)+(2*2)+(1*0)=165
165 % 10 = 5
So 557084-20-5 is a valid CAS Registry Number.

557084-20-5Upstream product

557084-20-5Relevant academic research and scientific papers

Cyclocondensation of 1-tosyl-2,2-dichloroethenyl isothiocyanate with O-, S-, N-, and C-nucleophiles

Babii,Zyabrev,Drach

, p. 1730 - 1735 (2007/10/03)

Treatment of 1-tosyl-2,2-dichloroethenyl isothiocyanate with alcohols, thiols, primary and secondary amines, hydrazine and its derivatives, and phosphonium ylides results in addition of the O-, S-, N-, or C-nucleophilic center to the isothiocyanate group, followed by cyclocondensation with elimination of hydrogen chloride and formation of the corresponding 2-functionally substituted 4-tosyl-5-chloro-1,3-thiazoles. Further transformations of these compounds were studied, and a series of previously unknown types of 3-functionally substituted 1,3-thiazole derivatives were prepared.

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