312509-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 312509-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,2,5,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 312509-70:
(8*3)+(7*1)+(6*2)+(5*5)+(4*0)+(3*9)+(2*7)+(1*0)=109
109 % 10 = 9
So 312509-70-9 is a valid CAS Registry Number.