18302-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18302-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,3,0 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18302-11:
(7*1)+(6*8)+(5*3)+(4*0)+(3*2)+(2*1)+(1*1)=79
79 % 10 = 9
So 18302-11-9 is a valid CAS Registry Number.