30631-17-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30631-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,3 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 30631-17:
(7*3)+(6*0)+(5*6)+(4*3)+(3*1)+(2*1)+(1*7)=75
75 % 10 = 5
So 30631-17-5 is a valid CAS Registry Number.