287918-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 287918-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,9,1 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 287918-16:
(8*2)+(7*8)+(6*7)+(5*9)+(4*1)+(3*8)+(2*1)+(1*6)=195
195 % 10 = 5
So 287918-16-5 is a valid CAS Registry Number.