97274-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97274-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,7 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97274-81:
(7*9)+(6*7)+(5*2)+(4*7)+(3*4)+(2*8)+(1*1)=172
172 % 10 = 2
So 97274-81-2 is a valid CAS Registry Number.
97274-81-2Relevant articles and documents
SYNTHESIS OF (+/-)-PRAERUPTORIN A AND RELATED KHELLACTONE DERIVATIVES
Bal-Tembe, Swati,Bhedi, Dilip N.,Souza, Noel J. de,Rupp, Richard Helmut
, p. 1239 - 1249 (2007/10/02)
The first synthesis of the pyranocoumarin natural product, (+/-)-praeruptorin A (= Pd-Ia), is described.A general method for the preparation of various khellactone derivatives is reported.
