99290-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99290-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,9 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99290-31:
(7*9)+(6*9)+(5*2)+(4*9)+(3*0)+(2*3)+(1*1)=170
170 % 10 = 0
So 99290-31-0 is a valid CAS Registry Number.