690253-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690253-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,5 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 690253-80:
(8*6)+(7*9)+(6*0)+(5*2)+(4*5)+(3*3)+(2*8)+(1*0)=166
166 % 10 = 6
So 690253-80-6 is a valid CAS Registry Number.