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73820-45-8

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73820-45-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73820-45-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73820-45:
(7*7)+(6*3)+(5*8)+(4*2)+(3*0)+(2*4)+(1*5)=128
128 % 10 = 8
So 73820-45-8 is a valid CAS Registry Number.

73820-45-8Relevant articles and documents

A SYNTHESIS OF (+/-)-Δ2-α-LYCOREN-7-ONE, THE KEY INTERMEDIATE FOR THE TOTAL SYNTHESIS OF (+/-)-LYCORINE

Umezawa, Bunsuke,Hoshino, Osamu,Sawaki, Shohei,Sashida, Haruki,Mori, Kazuhiko,et al.

, p. 1783 - 1790 (2007/10/02)

(+/-)-α-Lycoran-3,5-dione (14a) was prepared from octahydrophenanthridin-3-one (8b) obtained by two methods starting from 5-aryl-4-nitrocyclohaxane (2) and 1-hydroxy-2-aryl-5-oxo-cyclohexanecarboxylic acid (10), both of which were prepared by the Diels-Al

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