856844-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856844-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,8,4 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 856844-93:
(8*8)+(7*5)+(6*6)+(5*8)+(4*4)+(3*4)+(2*9)+(1*3)=224
224 % 10 = 4
So 856844-93-4 is a valid CAS Registry Number.