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1609133-08-5

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1609133-08-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1609133-08-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,1,3 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1609133-08:
(9*1)+(8*6)+(7*0)+(6*9)+(5*1)+(4*3)+(3*3)+(2*0)+(1*8)=145
145 % 10 = 5
So 1609133-08-5 is a valid CAS Registry Number.

1609133-08-5Downstream Products

1609133-08-5Relevant academic research and scientific papers

Palladium-catalyzed [2+2+1] oxidative annulation of 4-hydroxycoumarins with unactivated internal alkynes: Access to spiro cyclopentadiene-chroman-2,4-dione complexes

Peng, Shiyong,Gao, Tao,Sun, Shaofa,Peng, Yanhong,Wu, Minghu,Guo, Haibing,Wang, Jian

supporting information, p. 319 - 324 (2014/05/20)

Herein, we report our new results regarding a palladium-catalyzed [2+2+1] oxidative annulation of 4-hydroxycoumarins with unactivated internal alkynes, which affords a new class of compounds: the spiro cyclopentadiene-chroman-2,4- diones.

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