696623-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 696623-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,6,6,2 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 696623-31:
(8*6)+(7*9)+(6*6)+(5*6)+(4*2)+(3*3)+(2*3)+(1*1)=201
201 % 10 = 1
So 696623-31-1 is a valid CAS Registry Number.