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133129-98-3

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133129-98-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133129-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,2 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133129-98:
(8*1)+(7*3)+(6*3)+(5*1)+(4*2)+(3*9)+(2*9)+(1*8)=113
113 % 10 = 3
So 133129-98-3 is a valid CAS Registry Number.

133129-98-3Relevant articles and documents

Tandem Radical Cyclization of Acyclic Homoallylic Xanthates; Cyclopentannulated γ-Thionolactone and γ-Lactones

Iwasa, Seiji,Yamamoto, Makoto,Kohmoto, Shigeo,Yamada, Kazutoshi

, p. 2849 - 2853 (1991)

The first tandem radical cyclization of linear homoallylic xanthates was explored.Homoallylic xanthates prepared from α,β-unsaturated esters were easily cyclized by tin hydride with an radical initiator to give the corresponding thionolactone annulated cy

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