29990-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 29990-68-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,9,9 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 29990-68:
(7*2)+(6*9)+(5*9)+(4*9)+(3*0)+(2*6)+(1*8)=169
169 % 10 = 9
So 29990-68-9 is a valid CAS Registry Number.