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335421-55-1

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335421-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 335421-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,5,4,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 335421-55:
(8*3)+(7*3)+(6*5)+(5*4)+(4*2)+(3*1)+(2*5)+(1*5)=121
121 % 10 = 1
So 335421-55-1 is a valid CAS Registry Number.

335421-55-1Relevant articles and documents

A modified Robinson annulation process to α,α-disubstituted-β,γ-unsaturated cyclohexanone system. Application to the total synthesis of nanaimoal

Liu, Hsing-Jang,Ly, Tai Wei,Tai, Chia-Liang,Wu, Jen-Dar,Liang, Jinn-Kwei,Guo, Jiunn-Cheh,Tseng, Nai-Wen,Shia, Kak-Shan

, p. 1209 - 1226 (2007/10/03)

4-Cyano-2-cyclohexenones were found to be susceptible to reductive alkylation reactions, giving the corresponding 2,2-disubstituted-3-cyclohexenone derivatives in a completely regioselective manner. This newly developed methodology has been successfully applied towards the total synthesis, in racemic form, of the marine natural product nanaimoal.

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