164105-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164105-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,1,0 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 164105-25:
(8*1)+(7*6)+(6*4)+(5*1)+(4*0)+(3*5)+(2*2)+(1*5)=103
103 % 10 = 3
So 164105-25-3 is a valid CAS Registry Number.