155653-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155653-44-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,5 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155653-44:
(8*1)+(7*5)+(6*5)+(5*6)+(4*5)+(3*3)+(2*4)+(1*4)=144
144 % 10 = 4
So 155653-44-4 is a valid CAS Registry Number.