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81752-80-9

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81752-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81752-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,5 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81752-80:
(7*8)+(6*1)+(5*7)+(4*5)+(3*2)+(2*8)+(1*0)=139
139 % 10 = 9
So 81752-80-9 is a valid CAS Registry Number.

81752-80-9Downstream Products

81752-80-9Relevant articles and documents

Synthesis of coleon C tri-O-methyl ether

Burnell, Robert H.,Andersen, Andre,Neron, Martine,Savard, Sylvain

, p. 2769 - 2776 (2007/10/02)

Starting from podocarpic acid, two model preparations are described leading to p-quinones suitably functionalized as intermediates in the synthesis of coleon C.The proper p-quinone was obtained by a regio-and stereo-selective route and, following steps pr

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