153719-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 153719-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,7,1 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 153719-44:
(8*1)+(7*5)+(6*3)+(5*7)+(4*1)+(3*9)+(2*4)+(1*4)=139
139 % 10 = 9
So 153719-44-9 is a valid CAS Registry Number.