Cas 404574-38-5,C43H54O8

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Check Digit Verification of cas no

The CAS Registry Mumber 404574-38-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,5,7 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 404574-38:
(8*4)+(7*0)+(6*4)+(5*5)+(4*7)+(3*4)+(2*3)+(1*8)=135
135 % 10 = 5
So 404574-38-5 is a valid CAS Registry Number.

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404574-38-5Relevant academic research and scientific papers

Redox refunctionalization of steroid spiroketals. Structure correction of ritterazine M

Lee, Seongmin,LaCour, Thomas G.,Lantrip, Douglas,Fuchs, Philip L.

, p. 313 - 316 (2007/10/03)

(Equation Presented) The structure of the North spiroketal moiety of ritterazine M has been corrected from 1a to 1b. This was accomplished by comparison of published spectra of the natural product with five synthetic spiroketal-alcohols. Synthesis of thes

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