15021-18-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15021-18-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,0,2 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 15021-18:
(7*1)+(6*5)+(5*0)+(4*2)+(3*1)+(2*1)+(1*8)=58
58 % 10 = 8
So 15021-18-8 is a valid CAS Registry Number.