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517863-97-7

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517863-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 517863-97-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,7,8,6 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 517863-97:
(8*5)+(7*1)+(6*7)+(5*8)+(4*6)+(3*3)+(2*9)+(1*7)=187
187 % 10 = 7
So 517863-97-7 is a valid CAS Registry Number.

517863-97-7Downstream Products

517863-97-7Relevant articles and documents

Regioselective synthesis of dihydrofuro[3,2-g]coumarin-6-one

González-Gómez, José C.,Santana, Lourdes,Uriarte, Eugenio

, p. 27 - 29 (2003)

New regioselective routes for the preparation of dihydrofuro[3,2-g]coumarin-6-one (5) have been studied. An efficient three-step synthesis of methyl 3-(5′-chloroacetyl-2′,4′-dihydroxyphenyl)propanoate (7) from resorcinol was the key for the success of our preparation of the target compound 5.

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