856100-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856100-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,1,0 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 856100-91:
(8*8)+(7*5)+(6*6)+(5*1)+(4*0)+(3*0)+(2*9)+(1*1)=159
159 % 10 = 9
So 856100-91-9 is a valid CAS Registry Number.