91800-85-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91800-85-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,0 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91800-85:
(7*9)+(6*1)+(5*8)+(4*0)+(3*0)+(2*8)+(1*5)=130
130 % 10 = 0
So 91800-85-0 is a valid CAS Registry Number.