18655-75-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18655-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,6,5 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 18655-75:
(7*1)+(6*8)+(5*6)+(4*5)+(3*5)+(2*7)+(1*5)=139
139 % 10 = 9
So 18655-75-9 is a valid CAS Registry Number.