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81424-27-3

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81424-27-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81424-27-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,2 and 4 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81424-27:
(7*8)+(6*1)+(5*4)+(4*2)+(3*4)+(2*2)+(1*7)=113
113 % 10 = 3
So 81424-27-3 is a valid CAS Registry Number.

81424-27-3Relevant articles and documents

The Total Synthesis of Prostaglandins by the Tropolone Route

Greene, Andrew E.,Teixeira, Marco A.,Barreiro, Eliezer,Cruz, Alicia,Crabbe, Pierre

, p. 2553 - 2564 (2007/10/02)

A general synthesis from α-tropolone methyl ether of natural and modified prostaglandins is detailed.A key intermediate in the synthesis, 7-methoxybicyclohepta-3,6-dien-2-one, has been secured from α-tropolone methyl ether in improved yield and con

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