Cas 642087-72-7,5-chloro-2-(4-methylbenzyl)-isothiazol-3(2H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 642087-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,2,0,8 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 642087-72:
(8*6)+(7*4)+(6*2)+(5*0)+(4*8)+(3*7)+(2*7)+(1*2)=157
157 % 10 = 7
So 642087-72-7 is a valid CAS Registry Number.

642087-72-7Upstream product

33312-11-7 N,N'-bis-(4-methyl-benzyl)-3,3'-disulfanediyl-bis-propionamide

642087-72-7Downstream Products

642088-07-1 5-chloro-N-(4-methylbenzyl)isothiazol-3-amine

642087-72-7Relevant academic research and scientific papers

Isothiazoles. Part 14: New 3-aminosubstituted isothiazole dioxides and their mono- and dihalogeno derivatives

Clerici, Francesca,Contini, Alessandro,Gelmi, Maria Luisa,Pocar, Donato

, p. 9399 - 9408 (2003)

3-Alkylamino- and 3-arylamino isothiazole dioxides unsubstituted at C-4 and C-5 were synthesized starting from dithiopropionic amides. Taking advantage of the direct chlorination during the cyclization process or realizing an addition-elimination process with bromine on the final 3-aminoisothiazole dioxide derivatives, the corresponding 5-chloro-, 4,5-dichloro- or the 4-bromoisothiazole dioxides could also be made available.

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