444197-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 444197-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,1,9 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 444197-87:
(8*4)+(7*4)+(6*4)+(5*1)+(4*9)+(3*7)+(2*8)+(1*7)=169
169 % 10 = 9
So 444197-87-9 is a valid CAS Registry Number.