100521-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100521-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,5,2 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 100521-67:
(8*1)+(7*0)+(6*0)+(5*5)+(4*2)+(3*1)+(2*6)+(1*7)=63
63 % 10 = 3
So 100521-67-3 is a valid CAS Registry Number.