154439-37-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154439-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,4,3 and 9 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 154439-37:
(8*1)+(7*5)+(6*4)+(5*4)+(4*3)+(3*9)+(2*3)+(1*7)=139
139 % 10 = 9
So 154439-37-9 is a valid CAS Registry Number.