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201477-90-9

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201477-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201477-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,4,7 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 201477-90:
(8*2)+(7*0)+(6*1)+(5*4)+(4*7)+(3*7)+(2*9)+(1*0)=109
109 % 10 = 9
So 201477-90-9 is a valid CAS Registry Number.

201477-90-9Relevant articles and documents

Enantiocontrolled Construction of Functionalized Tetrahydrofurans: Total Synthesis of (6S,7S,9R,10R)-6,9-Epoxynonadec-18-ene-7,10-diol, a Marine Natural Product

Wang, Zhi-Min,Shen, Ming

, p. 1414 - 1418 (2007/10/03)

An efficient strategy has been developed for the construction of highly functionalized tetrahydrofurans. The key feature involves the use of Sharpless asymmetric dihydroxylation and the choice of a new bis-C3 building block 5 as the starting material which increased the efficiency. On the basis of this methodology, a marine natural product, (6S,7S,9R,10R)-6,9-epoxynonadec-18-ene-7,10-diol (1), was successfully synthesized in high enantioselectivity.

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