31582-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31582-77-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,8 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31582-77:
(7*3)+(6*1)+(5*5)+(4*8)+(3*2)+(2*7)+(1*7)=111
111 % 10 = 1
So 31582-77-1 is a valid CAS Registry Number.