785-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 785-31-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,8 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 785-31:
(5*7)+(4*8)+(3*5)+(2*3)+(1*1)=89
89 % 10 = 9
So 785-31-9 is a valid CAS Registry Number.