288839-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 288839-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,8,8,3 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 288839-18:
(8*2)+(7*8)+(6*8)+(5*8)+(4*3)+(3*9)+(2*1)+(1*8)=209
209 % 10 = 9
So 288839-18-9 is a valid CAS Registry Number.