218917-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 218917-23-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,9,1 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 218917-23:
(8*2)+(7*1)+(6*8)+(5*9)+(4*1)+(3*7)+(2*2)+(1*3)=148
148 % 10 = 8
So 218917-23-8 is a valid CAS Registry Number.