656250-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 656250-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,5 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 656250-42:
(8*6)+(7*5)+(6*6)+(5*2)+(4*5)+(3*0)+(2*4)+(1*2)=159
159 % 10 = 9
So 656250-42-9 is a valid CAS Registry Number.