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69660-90-8

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69660-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69660-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,6 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69660-90:
(7*6)+(6*9)+(5*6)+(4*6)+(3*0)+(2*9)+(1*0)=168
168 % 10 = 8
So 69660-90-8 is a valid CAS Registry Number.

69660-90-8Relevant articles and documents

Semi-synthesis of triterpene A-ring derivatives from oleanolic and maslinic acids. Part II. Theoretical and experimental 13C chemical shifts

Garcia-Granados, Andres,Duenas, Jose,Melguizo, Enrique,Moliz, Juan N.,Parra, Andres,Perez, Felipe L.

, p. 653 - 670 (2007/10/03)

Maslinic acid was obtained from olive-pressing residues, an several derivatives were formed. Rearrangements of 2-tosyloxy-derivatives of methyl maslinate made out by acetolysis. The main product of these rearrangements contained a cyclopentanic A-ring as

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