18001-27-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18001-27-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,0 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 18001-27:
(7*1)+(6*8)+(5*0)+(4*0)+(3*1)+(2*2)+(1*7)=69
69 % 10 = 9
So 18001-27-9 is a valid CAS Registry Number.