70391-04-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70391-04-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,9 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70391-04:
(7*7)+(6*0)+(5*3)+(4*9)+(3*1)+(2*0)+(1*4)=107
107 % 10 = 7
So 70391-04-7 is a valid CAS Registry Number.