153968-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 153968-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,9,6 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 153968-91:
(8*1)+(7*5)+(6*3)+(5*9)+(4*6)+(3*8)+(2*9)+(1*1)=173
173 % 10 = 3
So 153968-91-3 is a valid CAS Registry Number.