90723-64-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90723-64-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,2 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90723-64:
(7*9)+(6*0)+(5*7)+(4*2)+(3*3)+(2*6)+(1*4)=131
131 % 10 = 1
So 90723-64-1 is a valid CAS Registry Number.