55238-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55238-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,3 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55238-16:
(7*5)+(6*5)+(5*2)+(4*3)+(3*8)+(2*1)+(1*6)=119
119 % 10 = 9
So 55238-16-9 is a valid CAS Registry Number.