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1609132-91-3

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1609132-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1609132-91-3 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 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1609132-91:
(9*1)+(8*6)+(7*0)+(6*9)+(5*1)+(4*3)+(3*2)+(2*9)+(1*1)=153
153 % 10 = 3
So 1609132-91-3 is a valid CAS Registry Number.

1609132-91-3Downstream Products

1609132-91-3Relevant 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

, 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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