18928-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18928-07-9 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 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 18928-07:
(7*1)+(6*8)+(5*9)+(4*2)+(3*8)+(2*0)+(1*7)=139
139 % 10 = 9
So 18928-07-9 is a valid CAS Registry Number.