18949-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18949-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,4 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18949-31:
(7*1)+(6*8)+(5*9)+(4*4)+(3*9)+(2*3)+(1*1)=150
150 % 10 = 0
So 18949-31-0 is a valid CAS Registry Number.