873981-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873981-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,9,8 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 873981-77:
(8*8)+(7*7)+(6*3)+(5*9)+(4*8)+(3*1)+(2*7)+(1*7)=232
232 % 10 = 2
So 873981-77-2 is a valid CAS Registry Number.