873977-71-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873977-71-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,9,7 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 873977-71:
(8*8)+(7*7)+(6*3)+(5*9)+(4*7)+(3*7)+(2*7)+(1*1)=240
240 % 10 = 0
So 873977-71-0 is a valid CAS Registry Number.