550348-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 550348-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,0,3,4 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 550348-83:
(8*5)+(7*5)+(6*0)+(5*3)+(4*4)+(3*8)+(2*8)+(1*3)=149
149 % 10 = 9
So 550348-83-9 is a valid CAS Registry Number.