858439-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858439-03-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,4,3 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 858439-03:
(8*8)+(7*5)+(6*8)+(5*4)+(4*3)+(3*9)+(2*0)+(1*3)=209
209 % 10 = 9
So 858439-03-9 is a valid CAS Registry Number.