690988-29-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690988-29-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,9,8 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690988-29:
(8*6)+(7*9)+(6*0)+(5*9)+(4*8)+(3*8)+(2*2)+(1*9)=225
225 % 10 = 5
So 690988-29-5 is a valid CAS Registry Number.