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140462-31-3

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140462-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140462-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,4,6 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140462-31:
(8*1)+(7*4)+(6*0)+(5*4)+(4*6)+(3*2)+(2*3)+(1*1)=93
93 % 10 = 3
So 140462-31-3 is a valid CAS Registry Number.

140462-31-3Downstream Products

140462-31-3Relevant articles and documents

Stereoselective syntheses of (±)-komaroviquinone and (±)-faveline methyl ether through intramolecular Heck reaction

Sengupta, Sujaya,Drew, Michael G. B.,Mukhopadhyay, Ranjan,Achari, Basudeb,Banerjee, Asish Kr

, p. 7694 - 7700 (2005)

An efficient, flexible, and stereoselective convergent route for constructing the trans-10-hydroxy-1,1-dimethyloctahydrodibenzo[a,d]cyclohepten- 7-ones (5a-c) was achieved via intramolecular Heck reaction. This strategy has been successfully implemented for the syntheses of (±)-komaroviquinone (3) through (±)-coulterone dimethyl ether (5c) and (±)-faveline methyl ether (1a).

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