900448-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900448-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,4,4 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 900448-91:
(8*9)+(7*0)+(6*0)+(5*4)+(4*4)+(3*8)+(2*9)+(1*1)=151
151 % 10 = 1
So 900448-91-1 is a valid CAS Registry Number.