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205310-54-9

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205310-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 205310-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,3,1 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 205310-54:
(8*2)+(7*0)+(6*5)+(5*3)+(4*1)+(3*0)+(2*5)+(1*4)=79
79 % 10 = 9
So 205310-54-9 is a valid CAS Registry Number.

205310-54-9Downstream Products

205310-54-9Relevant articles and documents

A concise preparation of yuehchukene and its analogues

Ishikura, Minoru,Imaizumi, Katsuaki,Katagiri, Nobuya

, p. 2201 - 2220 (2007/10/03)

The palladium catalyzed carbonylative cross-coupling reaction of indolylborates (2) with vinyl triflates (3) afforded indol-2-yl ketones (4), which were subsequently converted to hexahydroindeno[2,1-b]indoles (5) with the aid of an acid. This protocol was well adapted for the total synthesis of yuehchukene.

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