40215-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40215-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,1 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40215-18:
(7*4)+(6*0)+(5*2)+(4*1)+(3*5)+(2*1)+(1*8)=67
67 % 10 = 7
So 40215-18-7 is a valid CAS Registry Number.