90731-53-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90731-53-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,3 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90731-53:
(7*9)+(6*0)+(5*7)+(4*3)+(3*1)+(2*5)+(1*3)=126
126 % 10 = 6
So 90731-53-6 is a valid CAS Registry Number.