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959975-11-2

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959975-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 959975-11-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,9,9,7 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 959975-11:
(8*9)+(7*5)+(6*9)+(5*9)+(4*7)+(3*5)+(2*1)+(1*1)=252
252 % 10 = 2
So 959975-11-2 is a valid CAS Registry Number.

959975-11-2Relevant academic research and scientific papers

Copper/silver-cocatalyzed conia-ene reaction of linear β-alkynic β-ketoesters

Deng, Chen-Liang,Song, Ren-Jie,Guo, Sheng-Mei,Wang, Zhi-Qiang,Li, Jin-Heng

, p. 5111 - 5114 (2008/03/27)

A novel and general copper/silver catalytic system has been developed for the Conia-ene intramolecular reaction of linear β-alkynic β-ketoesters. In the presence of (CuOTf)2·C 6H6 and AgSbF6 (or AgOAc), a variety of the linear β-alkynic β-ketoesters selectively underwent the Conia-ene intramolecular reaction in moderate to good yields.

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