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1313809-70-9

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1313809-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1313809-70-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,8,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1313809-70:
(9*1)+(8*3)+(7*1)+(6*3)+(5*8)+(4*0)+(3*9)+(2*7)+(1*0)=139
139 % 10 = 9
So 1313809-70-9 is a valid CAS Registry Number.

1313809-70-9Relevant articles and documents

Sulfoxide-TFAA and nucleophile combination as new reagent for aliphatic C-H functionalization at indole 2α-position

Tayu, Masanori,Higuchi, Kazuhiro,Inaba, Masato,Kawasaki, Tomomi

supporting information, p. 496 - 502 (2013/02/23)

Aliphatic C-H functionalization at indole 2α-position mediated by acyloxythionium species 1 generated from sulfoxide and acid anhydride has been developed. The combination of sulfoxide and TFAA with O-, N- and C-nucleophiles enabled introduction of various substituents in a one-pot procedure. Especially on utilizing DMSO, the combination provided a practical and efficient method for the synthesis of a wide range of 2α-substituted indoles. The Royal Society of Chemistry 2013.

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