100800-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100800-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,8,0 and 0 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 100800-30:
(8*1)+(7*0)+(6*0)+(5*8)+(4*0)+(3*0)+(2*3)+(1*0)=54
54 % 10 = 4
So 100800-30-4 is a valid CAS Registry Number.