1401664-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1401664-85-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,1,6,6 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1401664-85:
(9*1)+(8*4)+(7*0)+(6*1)+(5*6)+(4*6)+(3*4)+(2*8)+(1*5)=134
134 % 10 = 4
So 1401664-85-4 is a valid CAS Registry Number.