39811-18-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39811-18-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,1 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 39811-18:
(7*3)+(6*9)+(5*8)+(4*1)+(3*1)+(2*1)+(1*8)=132
132 % 10 = 2
So 39811-18-2 is a valid CAS Registry Number.