56657-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56657-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,5 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56657-97:
(7*5)+(6*6)+(5*6)+(4*5)+(3*7)+(2*9)+(1*7)=167
167 % 10 = 7
So 56657-97-7 is a valid CAS Registry Number.
56657-97-7Relevant articles and documents
1,3-Dihydrospiro[isobenzofuran]s and derivatives thereof
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, (2008/06/13)
Novel substituted 1,3-dihydrospiro[isobenzofuran]s and methods of preparing the same are described. These compounds are useful as tranquilizers, analgetic agents and intermediates therefor.
