164905-41-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 164905-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,9,0 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164905-41:
(8*1)+(7*6)+(6*4)+(5*9)+(4*0)+(3*5)+(2*4)+(1*1)=143
143 % 10 = 3
So 164905-41-3 is a valid CAS Registry Number.