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212645-16-4

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212645-16-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212645-16-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,6,4 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 212645-16:
(8*2)+(7*1)+(6*2)+(5*6)+(4*4)+(3*5)+(2*1)+(1*6)=104
104 % 10 = 4
So 212645-16-4 is a valid CAS Registry Number.

212645-16-4Relevant articles and documents

Application of the 2-azaallyl anion cycloaddition method to an enantioselective total synthesis of (+)-coccinine

Pearson, William H.,Lian, Brian W.

, p. 1724 - 1726 (1998)

A highly functionalized perhydroindole is formed by the intramolecular [π4s+π2s] cycloaddition of a 2-azaallyl anion with a vinyl sulfide [Eq. (a)]. This is the key step in the total synthesis of (+)-coccinine, the enantiomer of the Amaryllidaceae alkaloi

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