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423763-79-5

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423763-79-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 423763-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,6 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 423763-79:
(8*4)+(7*2)+(6*3)+(5*7)+(4*6)+(3*3)+(2*7)+(1*9)=155
155 % 10 = 5
So 423763-79-5 is a valid CAS Registry Number.

423763-79-5Relevant articles and documents

A highly stereoselective asymmetric synthesis of (-)-lobeline and (-)-sedamine

Felpin, Francois-Xavier,Lebreton, Jacques

, p. 9192 - 9199 (2002)

A highly stereoselective asymmetric synthesis of (-)-sedamine and (-)-lobeline is described from benzaldehyde in 16 and 17 steps with an overall yield of 20% and 14%, respectively. The key intermediate syn-3,4-epoxyalcohol was prepared in a highly diastereomeric fashion (>99% ee, dr) and served as a common intermediate for both alkaloids.

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