30842-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30842-78-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,8,4 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 30842-78:
(7*3)+(6*0)+(5*8)+(4*4)+(3*2)+(2*7)+(1*8)=105
105 % 10 = 5
So 30842-78-5 is a valid CAS Registry Number.