14991-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 14991-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,9 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 14991-81:
(7*1)+(6*4)+(5*9)+(4*9)+(3*1)+(2*8)+(1*1)=132
132 % 10 = 2
So 14991-81-2 is a valid CAS Registry Number.