78441-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78441-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,4 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78441-31:
(7*7)+(6*8)+(5*4)+(4*4)+(3*1)+(2*3)+(1*1)=143
143 % 10 = 3
So 78441-31-3 is a valid CAS Registry Number.