100621-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100621-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,6,2 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 100621-68:
(8*1)+(7*0)+(6*0)+(5*6)+(4*2)+(3*1)+(2*6)+(1*8)=69
69 % 10 = 9
So 100621-68-9 is a valid CAS Registry Number.