644985-60-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 644985-60-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,4,9,8 and 5 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 644985-60:
(8*6)+(7*4)+(6*4)+(5*9)+(4*8)+(3*5)+(2*6)+(1*0)=204
204 % 10 = 4
So 644985-60-4 is a valid CAS Registry Number.