690656-60-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690656-60-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,6,5 and 6 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 690656-60:
(8*6)+(7*9)+(6*0)+(5*6)+(4*5)+(3*6)+(2*6)+(1*0)=191
191 % 10 = 1
So 690656-60-1 is a valid CAS Registry Number.