187163-99-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187163-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,1,6 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 187163-99:
(8*1)+(7*8)+(6*7)+(5*1)+(4*6)+(3*3)+(2*9)+(1*9)=171
171 % 10 = 1
So 187163-99-1 is a valid CAS Registry Number.