918644-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 918644-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,6,4 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 918644-25:
(8*9)+(7*1)+(6*8)+(5*6)+(4*4)+(3*4)+(2*2)+(1*5)=194
194 % 10 = 4
So 918644-25-4 is a valid CAS Registry Number.