164385-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164385-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,3,8 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164385-81:
(8*1)+(7*6)+(6*4)+(5*3)+(4*8)+(3*5)+(2*8)+(1*1)=153
153 % 10 = 3
So 164385-81-3 is a valid CAS Registry Number.