399016-87-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 399016-87-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,9,0,1 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 399016-87:
(8*3)+(7*9)+(6*9)+(5*0)+(4*1)+(3*6)+(2*8)+(1*7)=186
186 % 10 = 6
So 399016-87-6 is a valid CAS Registry Number.