17881-82-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17881-82-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,8 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 17881-82:
(7*1)+(6*7)+(5*8)+(4*8)+(3*1)+(2*8)+(1*2)=142
142 % 10 = 2
So 17881-82-2 is a valid CAS Registry Number.