18929-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18929-38-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,2 and 9 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18929-38:
(7*1)+(6*8)+(5*9)+(4*2)+(3*9)+(2*3)+(1*8)=149
149 % 10 = 9
So 18929-38-9 is a valid CAS Registry Number.