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109397-15-1

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109397-15-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109397-15-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,9 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109397-15:
(8*1)+(7*0)+(6*9)+(5*3)+(4*9)+(3*7)+(2*1)+(1*5)=141
141 % 10 = 1
So 109397-15-1 is a valid CAS Registry Number.

109397-15-1Relevant articles and documents

Calcium-catalyzed cycloisomerization of enynes

Meyer, Vera J.,Fu, Liang,Marquardt, Fabian,Niggemann, Meike

, p. 1943 - 1947 (2013)

A cycloisomerization of enynes with a benign calcium catalyst is presented exploring a complementary reactivity to that usually found in transition and noble metal-catalyzed reactions. Thereby, a systematic investigation of the π-activation of alkynes with reactive carbocations has been realized and ketones of various ring sizes were easily accessed. We are certain that these basic investigations will pave the way for the elaboration of further reactions based on the reaction principles discovered in the area of noble metal catalysis. Copyright

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