31580-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31580-74-2 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 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31580-74:
(7*3)+(6*1)+(5*5)+(4*8)+(3*0)+(2*7)+(1*4)=102
102 % 10 = 2
So 31580-74-2 is a valid CAS Registry Number.