856438-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856438-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,4,3 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 856438-65:
(8*8)+(7*5)+(6*6)+(5*4)+(4*3)+(3*8)+(2*6)+(1*5)=208
208 % 10 = 8
So 856438-65-8 is a valid CAS Registry Number.