674785-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 674785-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,4,7,8 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 674785-80:
(8*6)+(7*7)+(6*4)+(5*7)+(4*8)+(3*5)+(2*8)+(1*0)=219
219 % 10 = 9
So 674785-80-9 is a valid CAS Registry Number.