656231-35-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 656231-35-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,3 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 656231-35:
(8*6)+(7*5)+(6*6)+(5*2)+(4*3)+(3*1)+(2*3)+(1*5)=155
155 % 10 = 5
So 656231-35-5 is a valid CAS Registry Number.