70891-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70891-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,8,9 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 70891-93:
(7*7)+(6*0)+(5*8)+(4*9)+(3*1)+(2*9)+(1*3)=149
149 % 10 = 9
So 70891-93-9 is a valid CAS Registry Number.