863666-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 863666-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,3,6,6 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 863666-89:
(8*8)+(7*6)+(6*3)+(5*6)+(4*6)+(3*6)+(2*8)+(1*9)=221
221 % 10 = 1
So 863666-89-1 is a valid CAS Registry Number.