71281-78-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71281-78-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,8 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71281-78:
(7*7)+(6*1)+(5*2)+(4*8)+(3*1)+(2*7)+(1*8)=122
122 % 10 = 2
So 71281-78-2 is a valid CAS Registry Number.