90983-17-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90983-17-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,8 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90983-17:
(7*9)+(6*0)+(5*9)+(4*8)+(3*3)+(2*1)+(1*7)=158
158 % 10 = 8
So 90983-17-8 is a valid CAS Registry Number.