90021-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90021-69-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,0,2 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90021-69:
(7*9)+(6*0)+(5*0)+(4*2)+(3*1)+(2*6)+(1*9)=95
95 % 10 = 5
So 90021-69-5 is a valid CAS Registry Number.