1660143-83-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1660143-83-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,6,0,1,4 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1660143-83:
(9*1)+(8*6)+(7*6)+(6*0)+(5*1)+(4*4)+(3*3)+(2*8)+(1*3)=148
148 % 10 = 8
So 1660143-83-8 is a valid CAS Registry Number.