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403704-51-8

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403704-51-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 403704-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,7,0 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 403704-51:
(8*4)+(7*0)+(6*3)+(5*7)+(4*0)+(3*4)+(2*5)+(1*1)=108
108 % 10 = 8
So 403704-51-8 is a valid CAS Registry Number.

403704-51-8Relevant articles and documents

The first total synthesis of (corrected) ritterazine M

Lee, Seongmin,Fuchs, Philip L.

, p. 317 - 318 (2002)

(Equation Presented) Hecogenin acetate was converted to ritterazine M in 16 operations with an average yield per opearation of 87%. The overall linear yield was 12%. This confirmed 1 as the corrected structure for ritterazine M by total synthesis.

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