90684-10-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90684-10-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,8 and 4 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90684-10:
(7*9)+(6*0)+(5*6)+(4*8)+(3*4)+(2*1)+(1*0)=139
139 % 10 = 9
So 90684-10-9 is a valid CAS Registry Number.