102309-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102309-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,3,0 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 102309-79:
(8*1)+(7*0)+(6*2)+(5*3)+(4*0)+(3*9)+(2*7)+(1*9)=85
85 % 10 = 5
So 102309-79-5 is a valid CAS Registry Number.