10200-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10200-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,2,0 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 10200-91:
(7*1)+(6*0)+(5*2)+(4*0)+(3*0)+(2*9)+(1*1)=36
36 % 10 = 6
So 10200-91-6 is a valid CAS Registry Number.