90388-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90388-43-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,8 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90388-43:
(7*9)+(6*0)+(5*3)+(4*8)+(3*8)+(2*4)+(1*3)=145
145 % 10 = 5
So 90388-43-5 is a valid CAS Registry Number.