217324-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217324-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,3,2 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217324-49:
(8*2)+(7*1)+(6*7)+(5*3)+(4*2)+(3*4)+(2*4)+(1*9)=117
117 % 10 = 7
So 217324-49-7 is a valid CAS Registry Number.