100201-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100201-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,2,0 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100201-91:
(8*1)+(7*0)+(6*0)+(5*2)+(4*0)+(3*1)+(2*9)+(1*1)=40
40 % 10 = 0
So 100201-91-0 is a valid CAS Registry Number.