19953-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19953-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,5 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19953-81:
(7*1)+(6*9)+(5*9)+(4*5)+(3*3)+(2*8)+(1*1)=152
152 % 10 = 2
So 19953-81-2 is a valid CAS Registry Number.