7306-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7306-38-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,0 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7306-38:
(6*7)+(5*3)+(4*0)+(3*6)+(2*3)+(1*8)=89
89 % 10 = 9
So 7306-38-9 is a valid CAS Registry Number.