190451-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190451-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,4,5 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 190451-91:
(8*1)+(7*9)+(6*0)+(5*4)+(4*5)+(3*1)+(2*9)+(1*1)=133
133 % 10 = 3
So 190451-91-3 is a valid CAS Registry Number.