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239089-29-3

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239089-29-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 239089-29-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,0,8 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 239089-29:
(8*2)+(7*3)+(6*9)+(5*0)+(4*8)+(3*9)+(2*2)+(1*9)=163
163 % 10 = 3
So 239089-29-3 is a valid CAS Registry Number.

239089-29-3Relevant articles and documents

Synthetic studies on azadirachtin: An efficient asymmetric synthesis of the highly functionalized tricyclic decalin part of azadirachtin

Yamamoto,Ishihara,Kanoh,Murai

, p. 1894 - 1906 (2007/10/03)

The detailed examination of intramolecular Diels-Alder reactions of several structurally related trienes led to construction of the desired tricyclic decalin moiety of azadirachtin with the α-hydroxyl groups at C1 and C3 as well as the oxygenated substituent at C8 in the naturally occurring form in good yields.

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