863991-22-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 863991-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,3,9,9 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 863991-22:
(8*8)+(7*6)+(6*3)+(5*9)+(4*9)+(3*1)+(2*2)+(1*2)=214
214 % 10 = 4
So 863991-22-4 is a valid CAS Registry Number.