663183-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663183-28-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,1,8 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 663183-28:
(8*6)+(7*6)+(6*3)+(5*1)+(4*8)+(3*3)+(2*2)+(1*8)=166
166 % 10 = 6
So 663183-28-6 is a valid CAS Registry Number.