145643-71-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145643-71-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,6,4 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 145643-71:
(8*1)+(7*4)+(6*5)+(5*6)+(4*4)+(3*3)+(2*7)+(1*1)=136
136 % 10 = 6
So 145643-71-6 is a valid CAS Registry Number.