99541-08-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99541-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,5,4 and 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99541-08:
(7*9)+(6*9)+(5*5)+(4*4)+(3*1)+(2*0)+(1*8)=169
169 % 10 = 9
So 99541-08-9 is a valid CAS Registry Number.