90723-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90723-21-0 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, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 90723-21:
(7*9)+(6*0)+(5*7)+(4*2)+(3*3)+(2*2)+(1*1)=120
120 % 10 = 0
So 90723-21-0 is a valid CAS Registry Number.