656223-02-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 656223-02-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,2 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 656223-02:
(8*6)+(7*5)+(6*6)+(5*2)+(4*2)+(3*3)+(2*0)+(1*2)=148
148 % 10 = 8
So 656223-02-8 is a valid CAS Registry Number.