90840-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90840-47-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,4 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90840-47:
(7*9)+(6*0)+(5*8)+(4*4)+(3*0)+(2*4)+(1*7)=134
134 % 10 = 4
So 90840-47-4 is a valid CAS Registry Number.