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239075-95-7

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239075-95-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 239075-95-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,0,7 and 5 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 239075-95:
(8*2)+(7*3)+(6*9)+(5*0)+(4*7)+(3*5)+(2*9)+(1*5)=157
157 % 10 = 7
So 239075-95-7 is a valid CAS Registry Number.

239075-95-7Relevant articles and documents

An asymmetric aldol - Ring-closing metathesis strategy for the enantioselective construction of oxygen heterocycles: An efficient approach to the enantioselective synthesis of (+)-laurencin

Crimmins, Michael T.,Choy, Allison L.

, p. 5653 - 5660 (2007/10/03)

A strategy is described for the enantioselective construction of medium- ring cyclic ethers by merging the asymmetric aldol addition of glycolates with a ring-closing metathesis reaction. Cyclic ethers of seven-, eight-, and nine-membered rings are readil

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