668989-48-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668989-48-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,9,8 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 668989-48:
(8*6)+(7*6)+(6*8)+(5*9)+(4*8)+(3*9)+(2*4)+(1*8)=258
258 % 10 = 8
So 668989-48-8 is a valid CAS Registry Number.