100102-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100102-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,1,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100102-91:
(8*1)+(7*0)+(6*0)+(5*1)+(4*0)+(3*2)+(2*9)+(1*1)=38
38 % 10 = 8
So 100102-91-8 is a valid CAS Registry Number.