73402-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73402-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,0 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73402-22:
(7*7)+(6*3)+(5*4)+(4*0)+(3*2)+(2*2)+(1*2)=99
99 % 10 = 9
So 73402-22-9 is a valid CAS Registry Number.