674805-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 674805-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,4,8,0 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 674805-71:
(8*6)+(7*7)+(6*4)+(5*8)+(4*0)+(3*5)+(2*7)+(1*1)=191
191 % 10 = 1
So 674805-71-1 is a valid CAS Registry Number.