839705-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 839705-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,9,7,0 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 839705-26:
(8*8)+(7*3)+(6*9)+(5*7)+(4*0)+(3*5)+(2*2)+(1*6)=199
199 % 10 = 9
So 839705-26-9 is a valid CAS Registry Number.