102421-99-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102421-99-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,4,2 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 102421-99:
(8*1)+(7*0)+(6*2)+(5*4)+(4*2)+(3*1)+(2*9)+(1*9)=78
78 % 10 = 8
So 102421-99-8 is a valid CAS Registry Number.