164653-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164653-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,6,5 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 164653-52:
(8*1)+(7*6)+(6*4)+(5*6)+(4*5)+(3*3)+(2*5)+(1*2)=145
145 % 10 = 5
So 164653-52-5 is a valid CAS Registry Number.