5785-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5785-31-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,8 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5785-31:
(6*5)+(5*7)+(4*8)+(3*5)+(2*3)+(1*1)=119
119 % 10 = 9
So 5785-31-9 is a valid CAS Registry Number.