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161420-34-4

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161420-34-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161420-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,4,2 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 161420-34:
(8*1)+(7*6)+(6*1)+(5*4)+(4*2)+(3*0)+(2*3)+(1*4)=94
94 % 10 = 4
So 161420-34-4 is a valid CAS Registry Number.

161420-34-4Relevant articles and documents

Asymmetric diels-alder reactions of sulfonyl-functionalized α,β-unsaturated ketones with cyclopentadiene catalyzed by chiral lewis acid

Pei, Wen,Wang, Yu-Guang,Wang, Yong-Jiang,Sun, Li

scheme or table, p. 3383 - 3388 (2009/05/07)

Asymmetric Diels-Alder reactions of (E)-1-substituted sulfonyl-3-penten-2- ones with cyclopentadiene catalyzed by a chiral titanium reagent were investigated. The enantioselectivity was studied with different substituents in the position of sulfonyl moiet

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