890659-18-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 890659-18-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,0,6,5 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 890659-18:
(8*8)+(7*9)+(6*0)+(5*6)+(4*5)+(3*9)+(2*1)+(1*8)=214
214 % 10 = 4
So 890659-18-4 is a valid CAS Registry Number.