102644-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102644-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,6,4 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 102644-20:
(8*1)+(7*0)+(6*2)+(5*6)+(4*4)+(3*4)+(2*2)+(1*0)=82
82 % 10 = 2
So 102644-20-2 is a valid CAS Registry Number.