690222-34-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690222-34-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,2 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 690222-34:
(8*6)+(7*9)+(6*0)+(5*2)+(4*2)+(3*2)+(2*3)+(1*4)=145
145 % 10 = 5
So 690222-34-5 is a valid CAS Registry Number.