99844-85-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99844-85-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,4 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99844-85:
(7*9)+(6*9)+(5*8)+(4*4)+(3*4)+(2*8)+(1*5)=206
206 % 10 = 6
So 99844-85-6 is a valid CAS Registry Number.