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1421355-79-4

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1421355-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421355-79-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,3,5 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1421355-79:
(9*1)+(8*4)+(7*2)+(6*1)+(5*3)+(4*5)+(3*5)+(2*7)+(1*9)=134
134 % 10 = 4
So 1421355-79-4 is a valid CAS Registry Number.

1421355-79-4Relevant articles and documents

Remote anionic fries rearrangement of sulfonates: Regioselective synthesis of indole triflones

Xu, Xiu-Hua,Taniguchi, Misaki,Azuma, Ayaka,Liu, Guo Kai,Tokunaga, Etsuko,Shibata, Norio

supporting information, p. 686 - 689 (2013/03/29)

An unusual NaH-mediated remote anionic 1,5-thia-Fries rearrangement reaction was developed. This method provides an efficient approach for the regioselective synthesis of not only 2-(2-hydroxyphenyl)-3-indole triflones but also related 3-sulfonylindoles.

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