161941-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161941-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,4 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 161941-53:
(8*1)+(7*6)+(6*1)+(5*9)+(4*4)+(3*1)+(2*5)+(1*3)=133
133 % 10 = 3
So 161941-53-3 is a valid CAS Registry Number.