676257-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 676257-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,6,2,5 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 676257-63:
(8*6)+(7*7)+(6*6)+(5*2)+(4*5)+(3*7)+(2*6)+(1*3)=199
199 % 10 = 9
So 676257-63-9 is a valid CAS Registry Number.
676257-63-9Relevant articles and documents
Synthesis of novel α,α′,β-trisubstituted β-lactones
Barbaud, Christel,Guerrouache, Mohamed,Guérin, Philippe
, p. 9513 - 9515 (2002)
A concise and efficient synthesis of α,α′,β-trisubstituted β-lactones is presented. These novel lactones are easily obtained in five steps and will be dedicated to anionic ring opening polymerization.
