690959-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690959-89-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,9,5 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690959-89:
(8*6)+(7*9)+(6*0)+(5*9)+(4*5)+(3*9)+(2*8)+(1*9)=228
228 % 10 = 8
So 690959-89-8 is a valid CAS Registry Number.