690269-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690269-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,6 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690269-99:
(8*6)+(7*9)+(6*0)+(5*2)+(4*6)+(3*9)+(2*9)+(1*9)=199
199 % 10 = 9
So 690269-99-9 is a valid CAS Registry Number.